Tootfinder

Statistical Methodologies for Urban Morphology Indicators: A Comprehensive Review of Quantitative Approaches to Sustainable Urban Form
Mahshid Gorjian
https://arxiv.org/abs/2508.08305

Statistical Methodologies for Urban Morphology Indicators: A Comprehensive Review of Quantitative Approaches to Sustainable Urban Form
Urban morphology has a significant impact on sustainable urban outcomes in the ecological, social, and economic sectors. Nonetheless, academics lack clarity and consensus on how to quantify urban morphology indicators, which impedes multidisciplinary research and the creation of integrated sustainable solutions. This comprehensive study develops a detailed taxonomy of urban form indicators related to sustainability, describes quantitative approaches for investigating the linkages between urban …

Urban-STA4CLC: Urban Theory-Informed Spatio-Temporal Attention Model for Predicting Post-Disaster Commercial Land Use Change
Ziyi Guo, Yan Wang
https://arxiv.org/abs/2508.08976 …

Urban-STA4CLC: Urban Theory-Informed Spatio-Temporal Attention Model for Predicting Post-Disaster Commercial Land Use Change
Natural disasters such as hurricanes and wildfires increasingly introduce unusual disturbance on economic activities, which are especially likely to reshape commercial land use pattern given their sensitive to customer visitation. However, current modeling approaches are limited in capturing such complex interplay between human activities and commercial land use change under and following disturbances. Such interactions have been more effectively captured in current resilient urban planning the…

urban_streets: Urban street networks (2017)
20 urban street networks, corresponding to 1-square-mile maps of 20 cities around the world.
This network has 169 nodes and 197 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/urban_s

Urbanite: A Dataflow-Based Framework for Human-AI Interactive Alignment in Urban Visual Analytics
Gustavo Moreira, Leonardo Ferreira, Carolina Veiga, Maryam Hosseini, Fabio Miranda
https://arxiv.org/abs/2508.07390

Urbanite: A Dataflow-Based Framework for Human-AI Interactive Alignment in Urban Visual Analytics
With the growing availability of urban data and the increasing complexity of societal challenges, visual analytics has become essential for deriving insights into pressing real-world problems. However, analyzing such data is inherently complex and iterative, requiring expertise across multiple domains. The need to manage diverse datasets, distill intricate workflows, and integrate various analytical methods presents a high barrier to entry, especially for researchers and urban experts who lack …

AquaCast: Urban Water Dynamics Forecasting with Precipitation-Informed Multi-Input Transformer
Golnoosh Abdollahinejad, Saleh Baghersalimi, Denisa-Andreea Constantinescu, Sergey Shevchik, David Atienza
https://arxiv.org/abs/2509.09458

AquaCast: Urban Water Dynamics Forecasting with Precipitation-Informed Multi-Input Transformer
This work addresses the challenge of forecasting urban water dynamics by developing a multi-input, multi-output deep learning model that incorporates both endogenous variables (e.g., water height or discharge) and exogenous factors (e.g., precipitation history and forecast reports). Unlike conventional forecasting, the proposed model, AquaCast, captures both inter-variable and temporal dependencies across all inputs, while focusing forecast solely on endogenous variables. Exogenous inputs are f…

good anthology of urbanist writing! fresh takes on topics like land trusts, urban noise, conservative business owners, fun guerrilla urbanist occupations, the ecological value of leaf litter
saw it at dog eared books and impulse bought!
https://

On The Road - To Xi’An/ Silhouette 👤
在路上 - 去西安/ 轮廓 👤
📷 Pentax MX
🎞️Lucky SHD 400
#filmphotography #Photography #blackandwhite

Risk Aware Reservoir Control For Safer Urban Traffic Networks
Alexander Hammerl, Wenlong Jin, Ravi Seshadri, Thomas Kj{\ae}r Rasmussen, Otto Anker Nielsen
https://arxiv.org/abs/2508.06790

Risk Aware Reservoir Control For Safer Urban Traffic Networks
We present a risk-aware perimeter-style controller that couples safety and efficiency targets in large, heterogeneous urban traffic networks. The network is compressed into two interacting "reservoirs" whose dynamics follow the Generalized Bathtub Model, while accidents are described by a self-exciting (Hawkes) counting process whose intensity depends on vehicle exposure, speed dispersion between reservoirs and accident clustering. Accident occurrences feed back into operations through an analy…

I’m always excited to see people moving to vehicles that are (1) smaller and (2) more electric/human-powered. However, I probably agree with @… on this one.
Questions for this and any such “Should it use bike infrastructure?” situation:
1. Does it have emissions while in operation?
2. Does it regularly •stop• in the bike line (in practice, not just in theory)?
3. Does it block the full width of a narrow-ish urban bike lane, and thus prevent passing where a cargo bike would allow it?
4. What’s the magnitude of its momentum (weight times speed) while in operation? https://social.wildeboer.net/@jwildeboer/114845877730092611

🤨 Study of adolescents shows that the urban environment influences their sense of justice and trust in institutions
https://phys.org/news/2025-06-adolescents-urban-environment-justice.html

Study of adolescents shows that the urban environment influences their sense of justice and trust in institutions
A study of young people in the city of São Paulo, Brazil, reveals that adolescents living in neighborhoods with high rates of violence and poor infrastructure tend to perceive the world as being more unfair for them than for others.

Trump's Washington police takeover echoes history of racist narratives about urban crime (Matt Brown/Associated Press)
https://apnews.com/article/trump-washington-dc-takeover-race-39388597bad7e70085079888fe7fb57b
http://www.memeorandum.com/250812/p14#a250812p14

Top 25 worst NFL coaching hires this century: From Bobby Petrino to Nick Saban to Urban Meyer and more

https://www.cbssports.com/nfl/news/top-25-

FCC: "You need to do an RF exposure calculation for your barefoot 100W #HamRadio rig"
Urban climber: "Hold my beer"
https://www.reddit.com/r/urbanclimbing/s/tIGndPPCD0

Intersectoral Knowledge in AI and Urban Studies: A Framework for Transdisciplinary Research
Rashid Mushkani
https://arxiv.org/abs/2508.07507 https://arxiv.…

Intersectoral Knowledge in AI and Urban Studies: A Framework for Transdisciplinary Research
Transdisciplinary approaches are increasingly essential for addressing grand societal challenges, particularly in complex domains such as Artificial Intelligence (AI), urban planning, and social sciences. However, effectively validating and integrating knowledge across distinct epistemic and ontological perspectives poses significant difficulties. This article proposes a six-dimensional framework for assessing and strengthening transdisciplinary knowledge validity in AI and city studies, based …

A Probabilistic Framework for Predicting Spatiotemporal Intensity and Variability of Outdoor Thermal Comfort
Shisheng Chen, Ruohan Xu, Nyuk Hien Wong, Shanshan Tong, Jiashuo Wang, Matthaios Santamouris
https://arxiv.org/abs/2509.09468

A Probabilistic Framework for Predicting Spatiotemporal Intensity and Variability of Outdoor Thermal Comfort
Thermal conditions in the urban canopy exhibit stochastic variability driven by varied radiative fluxes and turbulent wind fields, requiring probabilistic rather than deterministic prediction methods. This study presents a probabilistic framework for predicting the spatial and temporal intensity and variability of outdoor thermal comfort in tropical urban environments. The framework integrates ground-measured meteorological data and remote sensing urban morphological data to calculate Physiolog…

As temperatures soar, it’s time to close the green space gap https://www.theguardian.com/science/2025/aug/07/temperatures-green-space-gap-urban-extreme-heat

"Enough SUVs to swamp Manchester as ownership increases 10-fold "- EnvironmentJournal https://environmentjournal.online/transport/enough-suvs-to-swamp-manchester-as-ownership-increases-10-fold/
Which is why

Enough SUVs to swamp Manchester as ownership increases 10-fold
20 years ago 3% of cars in English cities were sports utility vehicles. Today, that figure has leapt to 30%. According to new research published by Clean Cities, ‘carspreading’ has increased 10 fold in major urban areas. There are now enough SUVs on England’s roads to cover the City of…

On The Road - To Xi’An/ Urban Setting 🤳
在路上 - 去西安/ 城市设置 🤳
📷 Pentax MX
🎞️Lucky SHD 400
#filmphotography #Photography #blackandwhite

FairDRL-ST: Disentangled Representation Learning for Fair Spatio-Temporal Mobility Prediction
Sichen Zhao, Wei Shao, Jeffrey Chan, Ziqi Xu, Flora Salim
https://arxiv.org/abs/2508.07518

FairDRL-ST: Disentangled Representation Learning for Fair Spatio-Temporal Mobility Prediction
As deep spatio-temporal neural networks are increasingly utilised in urban computing contexts, the deployment of such methods can have a direct impact on users of critical urban infrastructure, such as public transport, emergency services, and traffic management systems. While many spatio-temporal methods focus on improving accuracy, fairness has recently gained attention due to growing evidence that biased predictions in spatio-temporal applications can disproportionately disadvantage certain …

Statistical Perspectives on Urban Inequality: A Systematic Review of GIS-Based Methodologies and Applications
Mahshid Gorjian
https://arxiv.org/abs/2508.08296 https://

Statistical Perspectives on Urban Inequality: A Systematic Review of GIS-Based Methodologies and Applications
Urban inequality, as reflected by uneven spatial allocations of resources, services, and opportunities, has arisen as a major topic for quantitative research and policy intervention. Geographic Information Systems (GIS) provide a solid framework for quantifying, analyzing, and visualizing these disparities; nevertheless, the many statistical approaches used in different studies have not been completely pooled. This analysis looks at 201 peer-reviewed articles published between 1996 and 2024, ob…

It would be nice if the #upzoning plan didn't significantly reduce rear yard open space requirements - that removes valuable green space in the dense urban environment.
There are other approaches (great balconies!), but somehow I don;t see that playing out in San Francisco.

From large-eddy simulations to deep learning: A U-net model for fast urban canopy flow predictions
Themistoklis Vargiemezis, Catherine Gorl\'e
https://arxiv.org/abs/2507.06533

From large-eddy simulations to deep learning: A U-net model for fast urban canopy flow predictions
Accurate prediction of wind flow fields in urban canopies is crucial for ensuring pedestrian comfort, safety, and sustainable urban design. Traditional methods using wind tunnels and Computational Fluid Dynamics, such as Large-Eddy Simulations (LES), are limited by high costs, computational demands, and time requirements. This study presents a deep neural network (DNN) approach for fast and accurate predictions of urban wind flow fields, reducing computation time from an order of 10 hours on 32…

It would be nice if the #upzoning plan didn't significantly reduce rear yard open space requirements - that removes valuable green space in the dense urban environment.
There are other approaches (great balconies!), but somehow I don;t see that playing out in San Francisco.

Optimal Evacuation Control in Large Urban Networks With Stochastic Demand
Alexander Hammerl, Wenlong Jin, Ravi Seshadri, Thomas Kj{\ae}r Rasmusssen, Otoo Anker Nielsen
https://arxiv.org/abs/2508.06797 …

Optimal Evacuation Control in Large Urban Networks With Stochastic Demand
We develop a risk-aware Model Predictive Control (MPC) framework for large-scale vehicular evacuations. Traffic dynamics are captured by the Generalized Bathtub Model, which describes the network-wide trip completion rate by tracking the time evolution of the distribution of remaining trip distances. We model evacuation inflow as a stochastic inflow process, and employ origin gating as the control policy, implemented through staged departure orders or adaptive ramp metering. A convex objective …

OSMnx is a Python package to retrieve, model, analyze, and visualize street networks from OpenStreetMap.
Users can download and model walkable, drivable, or bikeable urban networks with a single line of Python code
-- and then easily analyze and visualize them.
You can just as easily download and work with amenities/points of interest, building footprints, elevation data, street bearings/orientations, and network routing.
If you use OSMnx in your work, please downlo…

"From shutters to reflective paint: how to prevent UK homes overheating"
#UK #UnitedKingdom #Houses

Rail service is in Canada is beyond half-ass. When booking a ticket between Toronto and Montreal - the country's two largest cities, their urban areas representing something like a third of Canada's population - you learn that, "We are currently experiencing delays of 15-45 minutes on certain Corridor trains due to unexpected speed restrictions imposed by CN, the railway infrastructure owner." It's almost as if government after government after government couldn't b…

What Demands Attention in Urban Street Scenes? From Scene Understanding towards Road Safety: A Survey of Vision-driven Datasets and Studies
Yaoqi Huang, Julie Stephany Berrio, Mao Shan, Stewart Worrall
https://arxiv.org/abs/2507.06513

What Demands Attention in Urban Street Scenes? From Scene Understanding towards Road Safety: A Survey of Vision-driven Datasets and Studies
Advances in vision-based sensors and computer vision algorithms have significantly improved the analysis and understanding of traffic scenarios. To facilitate the use of these improvements for road safety, this survey systematically categorizes the critical elements that demand attention in traffic scenarios and comprehensively analyzes available vision-driven tasks and datasets. Compared to existing surveys that focus on isolated domains, our taxonomy categorizes attention-worthy traffic entit…

Interpretable Machine Learning for Urban Heat Mitigation: Attribution and Weighting of Multi-Scale Drivers
David Tschan, Zhi Wang, Jan Carmeliet, Yongling Zhao
https://arxiv.org/abs/2507.04802

Interpretable Machine Learning for Urban Heat Mitigation: Attribution and Weighting of Multi-Scale Drivers
Urban heat islands (UHIs) are often accentuated during heat waves (HWs) and pose a public health risk. Mitigating UHIs requires urban planners to first estimate how urban heat is influenced by different land use types (LUTs) and drivers across scales - from synoptic-scale climatic background processes to small-scale urban- and scale-bridging features. This study proposes to classify these drivers into driving (D), urban (U), and local (L) features, respectively. To increase interpretability and…

Channel Charting in Smart Radio Environments
Mahdi Maleki, Reza Agahzadeh Ayoubi, Marouan Mizmizi, Umberto Spagnolini
https://arxiv.org/abs/2508.07305 https://

Channel Charting in Smart Radio Environments
This paper introduces the use of static electromagnetic skins (EMSs) to enable robust device localization via channel charting (CC) in realistic urban environments. We develop a rigorous optimization framework that leverages EMS to enhance channel dissimilarity and spatial fingerprinting, formulating EMS phase profile design as a codebook-based problem targeting the upper quantiles of key embedding metric, localization error, trustworthiness, and continuity. Through 3D ray-traced simulations of…

A Multidimensional AI-powered Framework for Analyzing Tourist Perception in Historic Urban Quarters: A Case Study in Shanghai
Kaizhen Tan, Yufan Wu, Yuxuan Liu, Haoran Zeng
https://arxiv.org/abs/2509.03830

A Multidimensional AI-powered Framework for Analyzing Tourist Perception in Historic Urban Quarters: A Case Study in Shanghai
Historic urban quarters play a vital role in preserving cultural heritage while serving as vibrant spaces for tourism and everyday life. Understanding how tourists perceive these environments is essential for sustainable, human-centered urban planning. This study proposes a multidimensional AI-powered framework for analyzing tourist perception in historic urban quarters using multimodal data from social media. Applied to twelve historic quarters in central Shanghai, the framework integrates foc…

A United Framework for Planning Electric Vehicle Charging Accessibility
Tony Kinchen, Panagiotis Typaldos, Andreas A. Malikopoulos
https://arxiv.org/abs/2508.05827 https://

A United Framework for Planning Electric Vehicle Charging Accessibility
The shift towards electric vehicles (EVs) is crucial for establishing sustainable and low-emission urban transportation systems. However, the success of this transition depends on the strategic placement of the charging infrastructure. This paper addresses the challenge of optimizing charging station locations in dense urban environments while balancing efficiency with spatial accessibility. We propose an optimization framework that integrates traffic simulation, energy consumption modeling, an…

Upcoming special issue in Urban Planning (cogitatio): Citizen-Centric Urban Planning Through Participatory Sensing Data and Digital Tools
https://www.cogitatiopress.com/urbanplanning/issue/futureissues#i530
Abstract submission deadline in December.

Future Issues | Urban Planning
Urban Planning is a new international peer-reviewed open access journal of urban studies

"But he rose in my mind like a cheap religious hologram, glowing, the enlarged chip on his Hawaiian shirt looming like a reconnaissance shot of some doomed urban nucleus." #JohnnyMnemonic

urban_streets: Urban street networks (2017)
20 urban street networks, corresponding to 1-square-mile maps of 20 cities around the world.
This network has 1496 nodes and 2255 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/urban_str…

City Features 🌆
城市特征 🌆
📷 Pentax MX
🎞️Ilford FP4 Plus, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Wave Propagation Dynamics via Lattice Difference Equations
Eddy Kwessi
https://arxiv.org/abs/2508.08387 https://arxiv.org/pdf/2508.08387

Wave Propagation Dynamics via Lattice Difference Equations
We develop and analyze a lattice difference equation (LDE) framework to model the spatial dynamics of invasion in populations. This framework extends beyond classical integro-difference and reaction-diffusion models by incorporating spatial discreteness and habitat fragmentation more faithfully, making it well-suited for urban and patchy landscapes. We characterize the local stability of equilibria, and demonstrate the existence of traveling wave solutions. A key focus is on how dispersal kerne…

Emergent gauge flux in QED$_3$ with flavor chemical potential: application to magnetized U(1) Dirac spin liquids
Chuang Chen, Urban F. P. Seifert, Kexin Feng, Oleg A. Starykh, Leon Balents, Zi Yang Meng
https://arxiv.org/abs/2508.08528

Emergent gauge flux in QED$_3$ with flavor chemical potential: application to magnetized U(1) Dirac spin liquids
We design a lattice model of non-compact U(1) gauge field coupled to fermions with a flavor chemical potential and solve it with large-scale determinant quantum Monte Carlo simulations. For zero flavor chemical potential, the model realizes three-dimensional quantum electrodynamics (QED$_3$) which has been argued to describe the ground state and low-energy excitations of the Dirac spin liquid phase of quantum antiferromagnets. At finite flavor chemical potential, corresponding to a Zeeman field…

Payment Channels with Proofs
Chad E. Brown, Cezary Kaliszyk, Josef Urban
https://arxiv.org/abs/2509.08268 https://arxiv.org/pdf/2509.08268

Payment Channels with Proofs
The fundamental building blocks of the Bitcoin lightning network are bidirectional payment channels. We describe an extension of payment channels in the Proofgold network which allow the two parties to bet on whether a proposition will be proven by a certain time. These provide the foundation for a Proofgold lightning network that would allow parties to request proofs (by betting there will be no proof by a certain time) and other parties to provide proofs (and be rewarded by betting there will…

Genauso habe ich Palmer im Kontakt auch erlebt: Wohlwollend könnte man sagen "keinerlei Interesse an Fakten”, aber angesichts Position, Bildungshintergrund und intendierter Wirkung darf man von Lüge sprechen.
https://reporter.social/@pikarl/114812281613451170

Interest Networks (iNETs) for Cities: Cross-Platform Insights and Urban Behavior Explanations
Gustavo H. Santos, Myriam Delgado, Thiago H. Silva
https://arxiv.org/abs/2507.04995

Interest Networks (iNETs) for Cities: Cross-Platform Insights and Urban Behavior Explanations
Location-Based Social Networks (LBSNs) provide a rich foundation for modeling urban behavior through iNETs (Interest Networks), which capture how user interests are distributed throughout urban spaces. This study compares iNETs across platforms (Google Places and Foursquare) and spatial granularities, showing that coarser levels reveal more consistent cross-platform patterns, while finer granularities expose subtle, platform-specific behaviors. Our analysis finds that, in general, user interest…

Our urban #MobilityAnalytics project EMERALDS hosts its next webinar tomorrow:
🗓️ 27 June | ⏰ 14:30 CEST | 📍Online
How The Hague is using data to manage urban risks.
Register 👉

Experimental Investigation of Availability in a 4.6 km Terrestrial Urban Coherent Free-Space Optical Communications Link
Vincent van Vliet, Menno van den Hout, Kadir G\"um\"u\c{s}, Eduward Tangdiongga, Chigo Okonkwo
https://arxiv.org/abs/2507.06051

Experimental Investigation of Availability in a 4.6 km Terrestrial Urban Coherent Free-Space Optical Communications Link
We measured the outage probability of a 4.6-km urban free-space optical communication link over six days. High-speed power measurements reveal slow and fast fading effects, with link availabilities of 92% including and 99% excluding slow fades for 500 Gb/s transmission.

Simulating The Urban Canopy's Impact on Wind-Driven Natural Ventilation and Cooling
Nicholas Bachand, Hesam Salehipour, Catherine Gorle
https://arxiv.org/abs/2508.04091 http…

Simulating The Urban Canopy's Impact on Wind-Driven Natural Ventilation and Cooling
The urban canopy affects wind in complex ways, making it challenging to predict wind-driven natural ventilation and cooling in buildings. Using large eddy simulations of coupled outdoor and indoor airflow, we study how the surrounding urban canopy and wind angle influence ventilation rates through four ventilation configurations: cross, corner, dual-room, and single-sided. Flow visualizations demonstrate how both large-scale flow patterns and local interference effects can influence ventilation…

StreetWeave: A Declarative Grammar for Street-Overlaid Visualization of Multivariate Data
Sanjana Srabanti, G. Elisabeta Marai, Fabio Miranda
https://arxiv.org/abs/2508.07496 ht…

StreetWeave: A Declarative Grammar for Street-Overlaid Visualization of Multivariate Data
The visualization and analysis of street and pedestrian networks are important to various domain experts, including urban planners, climate researchers, and health experts. This has led to the development of new techniques for street and pedestrian network visualization, expanding how data can be shown and understood more effectively. Despite their increasing adoption, there is no established design framework to guide the creation of these visualizations while addressing the diverse requirement…

Dual-Stage Safe Herding Framework for Adversarial Attacker in Dynamic Environment
Wenqing Wang, Ye Zhang, Haoyu Li, Jingyu Wang
https://arxiv.org/abs/2509.08460 https://

Dual-Stage Safe Herding Framework for Adversarial Attacker in Dynamic Environment
Recent advances in robotics have enabled the widespread deployment of autonomous robotic systems in complex operational environments, presenting both unprecedented opportunities and significant security problems. Traditional shepherding approaches based on fixed formations are often ineffective or risky in urban and obstacle-rich scenarios, especially when facing adversarial agents with unknown and adaptive behaviors. This paper addresses this challenge as an extended herding problem, where def…

Still more health advantages to electric cars: https://modernengineeringmarvels.com/2025/07/22/surprising-science-how-electric-cars-quietly-transform-urban-air/

Surprising Science: How Electric Cars Quietly Transform Urban Air
“It’s not just the tailpipe y’all,” joked one Electrek commenter, alluding to the black discolorations on alloy wheels visible proof of a less infamous city pollutant: brake dust. For d…

Anticyclotomic Euler Systems for CM fields
Yu-Sheng Lee
https://arxiv.org/abs/2508.05861 https://arxiv.org/pdf/2508.05861

Anticyclotomic Euler Systems for CM fields
Let $K/F$ be a CM extension satisfying the ordinary assumption for an odd prime $p$ and let $ψ$ be a finite order anticyclotomic Hecke character of $K$. When $K$ has a place above $p$ of degree one, we apply Urban's method and the results from our previous work to construct an anticyclotomic Euler system for $ψ$ under minor assumptions and prove one side o the divisibility of the anticyclotomic Iwasawa main conjecture for $ψ$ when $p$ is inverted.

urban_streets: Urban street networks (2017)
20 urban street networks, corresponding to 1-square-mile maps of 20 cities around the world.
This network has 541 nodes and 773 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/urban_str…

I love how smart these AI technologies are. They understand that "bigger" for cities can be ambiguous, refer to either the population or the area. It's also great that it's showing the sources in the upper corner, and displaying the basic facts.
Small minus on consistency and correctness, but other than that, really a great answer.
#google

Benchmarking Quantum and Classical Sequential Models for Urban Telecommunication Forecasting
Chi-Sheng Chen, Samuel Yen-Chi Chen, Yun-Cheng Tsai
https://arxiv.org/abs/2508.04488

Benchmarking Quantum and Classical Sequential Models for Urban Telecommunication Forecasting
In this study, we evaluate the performance of classical and quantum-inspired sequential models in forecasting univariate time series of incoming SMS activity (SMS-in) using the Milan Telecommunication Activity Dataset. Due to data completeness limitations, we focus exclusively on the SMS-in signal for each spatial grid cell. We compare five models, LSTM (baseline), Quantum LSTM (QLSTM), Quantum Adaptive Self-Attention (QASA), Quantum Receptance Weighted Key-Value (QRWKV), and Quantum Fast Weigh…

Robust Integrated Priority and Speed Control based on Hierarchical Stochastic Optimization to Promote Bus Schedule Adherence along Signalized Arterial
Shurui Guan, Keqiang Li, Haoyu Yang, Yihe Chen, Hanxiao Ren, Yugong Luo
https://arxiv.org/abs/2508.07749

Robust Integrated Priority and Speed Control based on Hierarchical Stochastic Optimization to Promote Bus Schedule Adherence along Signalized Arterial
In intelligent transportation systems (ITS), adaptive transit signal priority (TSP) and dynamic bus control systems have been independently developed to maintain efficient and reliable urban bus services. However, those two systems could potentially lead to conflicting decisions due to the lack of coordination. Although some studies explore the integrated control strategies along the arterial, they merely rely on signal replanning to address system uncertainties. Therefore, their performance se…

ASTARS empowered Satellite Positioning Approach for Urban Canyons and Indoor Environments
Yu Zhang, Xin Sun, Tianwei Hou, Anna Li, Sofie Pollin, Yuanwei Liu, Arumugam Nallanathan
https://arxiv.org/abs/2507.01783

ASTARS empowered Satellite Positioning Approach for Urban Canyons and Indoor Environments
To mitigate the loss of satellite navigation signals in urban canyons and indoor environments, we propose an active simultaneous transmitting and reflecting reconfigurable intelligent surface (ASTARS) empowered satellite positioning approach. Deployed on building structures, ASTARS reflects navigation signals to outdoor receivers in urban canyons and transmits signals indoors to bypass obstructions, providing high-precision positioning services to receivers in non-line-of-sight (NLoS) areas. Th…

Real-Time Kinematic Positioning and Optical See-Through Head-Mounted Display for Outdoor Tracking: Hybrid System and Preliminary Assessment
Muhannad Ismael, Ma\"el Cornil
https://arxiv.org/abs/2509.09412

Real-Time Kinematic Positioning and Optical See-Through Head-Mounted Display for Outdoor Tracking: Hybrid System and Preliminary Assessment
This paper presents an outdoor tracking system using Real-Time Kinematic (RTK) positioning and Optical See-Through Head Mounted Display(s) (OST-HMD(s)) in urban areas where the accurate tracking of objects is critical and where displaying occluded information is important for safety reasons. The approach presented here replaces 2D screens/tablets and offers distinct advantages, particularly in scenarios demanding hands-free operation. The integration of RTK, which provides centimeter-level accu…

Hammering Higher Order Set Theory
Chad E. Brown, Cezary Kaliszyk, Martin Suda, Josef Urban
https://arxiv.org/abs/2509.08264 https://arxiv.org/pdf/2509.0826…

Hammering Higher Order Set Theory
We use automated theorem provers to significantly shorten a formal development in higher order set theory. The development includes many standard theorems such as the fundamental theorem of arithmetic and irrationality of square root of two. Higher order automated theorem provers are particularly useful here, since the underlying framework of higher order set theory coincides with the classical extensional higher order logic of (most) higher order automated theorem provers, so no significant tr…

An Explainable Deep Neural Network with Frequency-Aware Channel and Spatial Refinement for Flood Prediction in Sustainable Cities
Shahid Shafi Dar, Bharat Kaurav, Arnav Jain, Chandravardhan Singh Raghaw, Mohammad Zia Ur Rehman, Nagendra Kumar
https://arxiv.org/abs/2509.08003

An Explainable Deep Neural Network with Frequency-Aware Channel and Spatial Refinement for Flood Prediction in Sustainable Cities
In an era of escalating climate change, urban flooding has emerged as a critical challenge for sustainable cities, threatening lives, infrastructure, and ecosystems. Traditional flood detection methods are constrained by their reliance on unimodal data and static rule-based systems, which fail to capture the dynamic, non-linear relationships inherent in flood events. Furthermore, existing attention mechanisms and ensemble learning approaches exhibit limitations in hierarchical refinement, cross…

Modeling Multistability and Hysteresis in Urban Traffic Dynamics
Jung-Hoon Jung, Young-Ho Eom
https://arxiv.org/abs/2507.06659 https://

Modeling Multistability and Hysteresis in Urban Traffic Dynamics
Growing evidence suggests that the macroscopic functional states of urban road networks exhibit multistability and hysteresis, but microscopic mechanisms underlying these phenomena remain elusive. Here, we demonstrate that in real-world road networks, the recovery process of congested roads is not spontaneous, as assumed in existing models, but is hindered by connected congested roads, and such hindered recovery can lead to the emergence of multistability and hysteresis in urban traffic dynamic…

Tell Urban Outfitters to Drop Wool Now! #AnimalRights

Tell Urban Outfitters to Drop Wool Now!
Help sheep who are kicked and cut up for wool.

Learning Multidimensional Urban Poverty Representation with Satellite Imagery
Sungwon Park, Sumin Lee, Jihee Kim, Jae-Gil Lee, Meeyoung Cha, Jeasurk Yang, Donghyun Ahn
https://arxiv.org/abs/2509.04958 …

Learning Multidimensional Urban Poverty Representation with Satellite Imagery
Recent advances in deep learning have enabled the inference of urban socioeconomic characteristics from satellite imagery. However, models relying solely on urbanization traits often show weak correlations with poverty indicators, as unplanned urban growth can obscure economic disparities and spatial inequalities. To address this limitation, we introduce a novel representation learning framework that captures multidimensional deprivation-related traits from very high-resolution satellite imager…

Peek 🔲
窥 🔲
📷 Pentax MX
🎞️Ilford FP4 Plus, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Data-Driven Discovery of Mobility Periodicity for Understanding Urban Transportation Systems
Xinyu Chen, Qi Wang, Yunhan Zheng, Nina Cao, HanQin Cai, Jinhua Zhao
https://arxiv.org/abs/2508.03747

Data-Driven Discovery of Mobility Periodicity for Understanding Urban Transportation Systems
Uncovering the temporal regularity of human mobility is crucial for discovering urban dynamics and has implications for various decision-making processes and urban system applications. This study formulates the periodicity quantification problem in complex and multidimensional human mobility data as a sparse identification of dominant positive auto-correlations in time series autoregression, allowing one to discover and quantify significant periodic patterns such as weekly periodicity from a da…

SIGMUS: Semantic Integration for Knowledge Graphs in Multimodal Urban Spaces
Brian Wang, Mani Srivastava
https://arxiv.org/abs/2509.00287 https://arxiv.org…

SIGMUS: Semantic Integration for Knowledge Graphs in Multimodal Urban Spaces
Modern urban spaces are equipped with an increasingly diverse set of sensors, all producing an abundance of multimodal data. Such multimodal data can be used to identify and reason about important incidents occurring in urban landscapes, such as major emergencies, cultural and social events, as well as natural disasters. However, such data may be fragmented over several sources and difficult to integrate due to the reliance on human-driven reasoning for identifying relationships between the mul…

what name could we give urban pedestrian paths, that doesn't imply they're secondary and inferior to the road they run parallel to (which I don't like about "sidewalk")?

Street network sub-patterns and travel mode
https://arxiv.org/abs/2507.19648

Street network sub-patterns and travel mode
Urban morphology has long been recognized as a factor shaping human mobility, yet comparative and formal classifications of urban form across metropolitan areas remain limited. Building on theoretical principles of urban structure and advances in unsupervised learning, we systematically classified the built environment of nine U.S. metropolitan areas using structural indicators such as density, connectivity, and spatial configuration. The resulting morphological types were linked to mobility pa…

urban_streets: Urban street networks (2017)
20 urban street networks, corresponding to 1-square-mile maps of 20 cities around the world.
This network has 169 nodes and 197 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/urban_s

Exploring Formal Math on the Blockchain: An Explorer for Proofgold
Chad E. Brown, Cezary Kaliszyk, Josef Urban
https://arxiv.org/abs/2509.08267 https://arx…

Exploring Formal Math on the Blockchain: An Explorer for Proofgold
Proofgold is a blockchain that supports formalized mathematics alongside standard cryptocurrency functionality. It incorporates logical constructs into the blockchain, including declarations of formal theories, definitions, propositions and proofs. It also supports placing and collecting bounties on proving these propositions, incentivizing the development of the formal libraries contained in Proofgold. In this paper, we present a web-based blockchain explorer for Proofgold. The system exposes …

Peek 🔲
窥 🔲
📷 Pentax MX
🎞️Ilford FP4 Plus, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

From Street Form to Spatial Justice: Explaining Urban Exercise Inequality via a Triadic SHAP-Informed Framework
Minwei Zhao, Guosheng Yang, Zhuoni Zhang, Cai Wu
https://arxiv.org/abs/2507.03570

From Street Form to Spatial Justice: Explaining Urban Exercise Inequality via a Triadic SHAP-Informed Framework
Urban streets are essential public spaces that facilitate everyday physical activity and promote health equity. Drawing on Henri Lefebvre's spatial triad, this study proposes a conceptual and methodological framework to quantify street-level exercise deprivation through the dimensions of conceived (planning and structure), perceived (visual and sensory), and lived (practice and experiential) urban spaces. We integrate multi-source spatial data-including street networks, street-view imagery, and…

"Light pollution causes urban birds to stay awake longer each day, study finds"
#LightPollution #Birds

Robotic 3D Flower Pose Estimation for Small-Scale Urban Farms
Harsh Muriki, Hong Ray Teo, Ved Sengupta, Ai-Ping Hu
https://arxiv.org/abs/2509.02870 https://

Robotic 3D Flower Pose Estimation for Small-Scale Urban Farms
The small scale of urban farms and the commercial availability of low-cost robots (such as the FarmBot) that automate simple tending tasks enable an accessible platform for plant phenotyping. We have used a FarmBot with a custom camera end-effector to estimate strawberry plant flower pose (for robotic pollination) from acquired 3D point cloud models. We describe a novel algorithm that translates individual occupancy grids along orthogonal axes of a point cloud to obtain 2D images corresponding …

FloodVision: Urban Flood Depth Estimation Using Foundation Vision-Language Models and Domain Knowledge Graph
Zhangding Liu, Neda Mohammadi, John E. Taylor
https://arxiv.org/abs/2509.04772

FloodVision: Urban Flood Depth Estimation Using Foundation Vision-Language Models and Domain Knowledge Graph
Timely and accurate floodwater depth estimation is critical for road accessibility and emergency response. While recent computer vision methods have enabled flood detection, they suffer from both accuracy limitations and poor generalization due to dependence on fixed object detectors and task-specific training. To enable accurate depth estimation that can generalize across diverse flood scenarios, this paper presents FloodVision, a zero-shot framework that combines the semantic reasoning abilit…

My 9mm goes bang again: here's the front entrance to Harold's Square framed by Paris Baguette which isn't from Paris but rather from South Korea
#photo #photography #ithaca

Do Streetscapes Still Matter for Customer Ratings of Eating and Drinking Establishments in Car-Dependent Cities?
Chaeyeon Han, Seung Jae Lieu, Uijeong Hwang, Subhrajit Guhathakurta
https://arxiv.org/abs/2508.06513

Do Streetscapes Still Matter for Customer Ratings of Eating and Drinking Establishments in Car-Dependent Cities?
This study examines how indoor and outdoor aesthetics, streetscapes, and neighborhood features shape customer satisfaction at eating and dining establishments (EDEs) across different urban contexts, varying in car dependency, in Washington, DC. Using review photos and street view images, computer vision models quantified perceived safety and visual appeal. Ordinal logistic regression analyzed their effects on Yelp ratings. Findings reveal that both indoor and outdoor environments significantly …

Our chapter on Urban #mobility is finally published, in the great Compendium of Urban Complexity!
https://link.springer.com/chapter/10.1007/978-3-031-82666-5_4…

Urban Mobility
In this chapter, we discuss urban mobility from a complexity science perspective. First, we give an overview of the datasets that enable this approach, such as mobile phone records, location-based social network traces, or GPS trajectories from sensors installed on...

Complexity Analysis of a Bicriteria Directed Multimodal Transportation Network Design Problem
Dominik Leib, Susanne Fritzler, Neele Leith\"auser
https://arxiv.org/abs/2507.07894

Complexity Analysis of a Bicriteria Directed Multimodal Transportation Network Design Problem
In this paper, we address a bicriteria network design problem that arises from practical applications in urban and rural public transportation planning. We establish the problem's complexity and demonstrate inapproximability results, highlighting the inherent difficulties in finding optimal solutions. Additionally, we identify special cases where approximability can be achieved, providing valuable insights for practitioners. Our proofs leverage complexity results related to directed network des…

Urban Solitude IV 🈳
城市孤独 IV 🈳
📷 Pentax MX
🎞️Fujifilm Neopan SS, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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Planning for Cooler Cities: A Multimodal AI Framework for Predicting and Mitigating Urban Heat Stress through Urban Landscape Transformation
Shengao Yi, Xiaojiang Li, Wei Tu, Tianhong Zhao
https://arxiv.org/abs/2507.23000

Planning for Cooler Cities: A Multimodal AI Framework for Predicting and Mitigating Urban Heat Stress through Urban Landscape Transformation
As extreme heat events intensify due to climate change and urbanization, cities face increasing challenges in mitigating outdoor heat stress. While traditional physical models such as SOLWEIG and ENVI-met provide detailed assessments of human-perceived heat exposure, their computational demands limit scalability for city-wide planning. In this study, we propose GSM-UTCI, a multimodal deep learning framework designed to predict daytime average Universal Thermal Climate Index (UTCI) at 1-meter hy…

Light pollution causes urban birds to stay awake longer each day, study finds https://www.theguardian.com/environment/2025/aug/21/light-pollution-causes-urban-birds-to-stay-awake-longer-each-day-study-finds…

Urban Comfort Assessment in the Era of Digital Planning: A Multidimensional, Data-driven, and AI-assisted Framework
Sijie Yang, Binyu Lei, Filip Biljecki
https://arxiv.org/abs/2508.16057

Urban Comfort Assessment in the Era of Digital Planning: A Multidimensional, Data-driven, and AI-assisted Framework
Ensuring liveability and comfort is one of the fundamental objectives of urban planning. Numerous studies have employed computational methods to assess and quantify factors related to urban comfort such as greenery coverage, thermal comfort, and walkability. However, a clear definition of urban comfort and its comprehensive evaluation framework remain elusive. Our research explores the theoretical interpretations and methodologies for assessing urban comfort within digital planning, emphasising…

Replaced article(s) found for physics.soc-ph. https://arxiv.org/list/physics.soc-ph/new
[1/1]:
- LLMs Capture Urban Science but Oversimplify Complexity
Yecheng Zhang, Rong Zhao, Zimu Huang, Ying Long

A Planning Strategy for Building a Heterogeneous Smart EM Environment
Arianna Benoni, Marco Salucci, Baozhu Li, Andrea Massa
https://arxiv.org/abs/2509.08378 https://

A Planning Strategy for Building a Heterogeneous Smart EM Environment
This paper presents a planning strategy for the deployment of smart electromagnetic entities (SEEs) to enhance the wireless coverage and the Quality-of-Service (QoS) in large urban areas. The integration of different technological solutions such as integrated access-and-backhaul nodes (IABs), smart repeaters (SRs), and electromagnetic skins (EMSs) is here addressed to enable an effective and efficient implementation of the concept of Smart Electromagnetic Environment (SEME). By combining the fe…

Aerial-ground Cross-modal Localization: Dataset, Ground-truth, and Benchmark
Yandi Yang, Jianping Li, Youqi Liao, Yuhao Li, Yizhe Zhang, Zhen Dong, Bisheng Yang, Naser El-Sheimy
https://arxiv.org/abs/2509.07362

Aerial-ground Cross-modal Localization: Dataset, Ground-truth, and Benchmark
Accurate visual localization in dense urban environments poses a fundamental task in photogrammetry, geospatial information science, and robotics. While imagery is a low-cost and widely accessible sensing modality, its effectiveness on visual odometry is often limited by textureless surfaces, severe viewpoint changes, and long-term drift. The growing public availability of airborne laser scanning (ALS) data opens new avenues for scalable and precise visual localization by leveraging ALS as a pr…

urban_streets: Urban street networks (2017)
20 urban street networks, corresponding to 1-square-mile maps of 20 cities around the world.
This network has 192 nodes and 303 edges.
Tags: Transportation, Roads, Unweighted, Metadata
https://networks.skewed.de/net/urban_s

Replaced article(s) found for physics.soc-ph. https://arxiv.org/list/physics.soc-ph/new
[1/1]:
- Contagion mean field model for transport in urban traffic networks
Santos, Castillo, Huesca, Sandoval

Urban Plantations ? 🟩
都市植被？🟩
📷 Pentax MX
🎞️Ilford FP4 Plus, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Urban Comfort Assessment in the Era of Digital Planning: A Multidimensional, Data-driven, and AI-assisted Framework
Sijie Yang, Binyu Lei, Filip Biljecki
https://arxiv.org/abs/2508.16057

Urban Comfort Assessment in the Era of Digital Planning: A Multidimensional, Data-driven, and AI-assisted Framework
Ensuring liveability and comfort is one of the fundamental objectives of urban planning. Numerous studies have employed computational methods to assess and quantify factors related to urban comfort such as greenery coverage, thermal comfort, and walkability. However, a clear definition of urban comfort and its comprehensive evaluation framework remain elusive. Our research explores the theoretical interpretations and methodologies for assessing urban comfort within digital planning, emphasising…

Supporting a Sustainable and Inclusive Urban Agriculture Federation using Dashboarding
Klervie Tocz\'e, Iffat Fatima, Patricia Lago, Lia van Wesenbeeck
https://arxiv.org/abs/2509.00595

Supporting a Sustainable and Inclusive Urban Agriculture Federation using Dashboarding
Reliable access to food is a basic requirement in any sustainable society. However, achieving food security for all is still a challenge, especially for poor populations in urban environments. The project Feed4Food aims to use a federation of Living Labs of urban agriculture in different countries as a way to increase urban food security for vulnerable populations. Since different Living Labs have different characteristics and ways of working, the vision is that the knowledge obtained in indi…

Sphereabout: A Spherical Intersection Design for Networked Urban Air Mobility
Farzan Moosavi, Bilal Farooq
https://arxiv.org/abs/2507.01610 https://…

Sphereabout: A Spherical Intersection Design for Networked Urban Air Mobility
Urban aerial mobility is rapidly expanding, specifically on-demand Unmanned Aerial Vehicle (UAV) delivery services in urban environments. This necessitates management of the low-altitude airspace network to ensure smooth and safe traffic throughput. This study introduces a novel three-dimensional aerial network design inspired by a terrestrial transportation graph network for UAV networked mobility. Utilizing two-way tube corridors for node-to-node delivery and a spherical roundabout model, as …

Economy and Geography Shape the Collective Attention of Cities
Ke-ke Shang, Jiangli Zhu, Junfan Yi, Liwen Zhang, Junjie Yang, Ge Guo, Zixuan Jin, Michael Small
https://arxiv.org/abs/2508.08907

Economy and Geography Shape the Collective Attention of Cities
Complex networks are commonly used to explore human behavior. However, previous studies largely overlooked the geographical and economic factors embedded in collective attention. To address this, we construct attention networks from time-series data for the United States and China, each a key economic power in the West and the East, respectively. We reveal a strong macroscale correlation between urban attention and Gross Domestic Product (GDP). At the mesoscale, community detection of attention…

On The Road - To Xi’An ☁️
在路上 - 去西安 ☁️
📷 Pentax MX
🎞️Lucky SHD 400
#filmphotography #Photography #blackandwhite

On The Road - To Xi’An/Human Intervention 🚶
在路上 - 去西安/人类遗迹 🚶
📷 Pentax MX
🎞️Lucky SHD 400
#filmphotography #Photography #blackandwhite

The three-dimensional structure of population density in world cities
Ga\"etan Laziou, R\'emi Lemoy
https://arxiv.org/abs/2509.06140 https://arxiv…

The three-dimensional structure of population density in world cities
A good understanding of cities is crucial to implement urban planning policies leading to social and economic sustainability and an efficient use of resources. While urban concentration has been associated with both positive and negative effects, echoing debates on compact cities, few studies have documented how density evolves with city size. We fill this gap by investigating how the population density radial structure changes across the urban hierarchy. Our results uncover strong regularities…

Urban Solitude V 🈳
城市孤独 V 🈳
📷 Pentax MX
🎞️Fujifilm Neopan SS, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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On The Road - To Xi’An/Urban Tomb 🪦
在路上 - 去西安/城市坟茔 🪦
📷 Pentax MX
🎞️Lucky SHD 400
#filmphotography #Photography #blackandwhite

Urban Snaps II 📸
城市抓拍 II 📸
📷 Pentax MX
🎞️Fujifilm Neopan SS, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

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City Snaps - Chengdu 🌠
城市抓拍 - 成都 🌠
📷 Nikon FE
🎞️Ilford Pan 400
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Urban Diaspora VIII ♾️
城市放逐 VIII ♾️
📷 Nikon FE
🎞️Ilford FP4 Plus, expired 1994
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Urban Solitude II 🈳
城市孤独 II 🈳
📷 Pentax MX
🎞️Fujifilm Neopan SS, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Yiding Cao Geld mit PayPal.Me senden
Folgen Sie dem Link PayPal.Me/dingsterdingster und geben Sie den Betrag ein. Es ist bequem und sicher. Sie haben noch kein PayPal-Konto? Kein Problem.

Urban Snaps 📸
城市抓拍 📸
📷 Pentax MX
🎞️Fujifilm Neopan SS, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Yiding Cao Geld mit PayPal.Me senden
Folgen Sie dem Link PayPal.Me/dingsterdingster und geben Sie den Betrag ein. Es ist bequem und sicher. Sie haben noch kein PayPal-Konto? Kein Problem.

Urban Solitude 🈳
城市孤独 🈳
📷 Pentax MX
🎞️Fujifilm Neopan SS, expired 1995
buy me ☕️ ?/请我喝杯☕️？
#filmphotography

Yiding Cao Geld mit PayPal.Me senden
Folgen Sie dem Link PayPal.Me/dingsterdingster und geben Sie den Betrag ein. Es ist bequem und sicher. Sie haben noch kein PayPal-Konto? Kein Problem.