Quantitative Aspects of Traffic
How to Reduce Congestion I: Optimal Speed Limit for Urban Traffic
How a mean-field model predicts the most fluid traffic flow on urban streets if the speed limit is 30km/h. And what real-world observation has to say about that.
Download as PDF: English - Deutsch - Italiano. Or read directly online in English.
RandomPhysics made a Youtube video about this: "Limite di velocità ottimale per decongestionare il traffico in città" (in Italian)
This has also been picked up in the UK by the organization "20's Plenty for Us".
And finally, Andres Snitcofsky made an interactive version where you can play with the parameters.
How to Reduce Congestion II: Optimal Speed Limit for Highways
How the Nagel-Schreckenberg model explains the emergence of traffic jams out of thin air. Understand the differences to urban traffic and find out what the optimal (in view of reducing congestion) speed limit for highways is. To appear.
Shortcuts Cause Congestion: Braess's Paradox
Closing existing roads can improve the traffic flow. Or how the Nash equilibrium may not equate with the best overall flow through a network. To appear. Come le scorcatoie creano congestione. Wie Abkürzungen Staus verursachen.
Comparison of travel times in Milan
Bicycle versus car versus public transportation: who is the winner at different times and on different routes in the city?
Surprise: also Bergamo - Milano and Magenta - Milano are faster by public transport than by car (and significantly cheaper).
To be expanded
Links
- Walker, Ian, Alan Tapp, and Adrian Davis. "Motornomativity: How Social Norms Hide a Major Public Health Hazard." PsyArXiv International Journal of Environment and Health, Volume: 11, Issue: 1, Pages: 21 - 33 (2023)
- The War on Cars: podcast
- Not Just Bikes: youtube channel
- Genitori Antismog: parents against dangerous smog in Milan
- Cittadini per l'aria: citizens for safe air in Milan
- Massa marmocchi Milano: bicycle bus to schools in Milan
- Clean Cities: coalition to build cities for people not cars
- Benzina zero: Italian blog
- FIAB Milano Ciclobby: Italian cyclists association, section Milan
- XKCD 2832: Urban Planning Opinion Progression
Become Active
- Città delle persone: Sign the public letter
- brouter: bicycle route planning (click on "Layers" in upper right corner and select "CyclOSM")
- Sai che puoi? Citizens' association in Milan
- Gruppo WhatsApp #bastamortiinstrada: news channel about demonstrations and events in Milan for a safer city
- Gruppo WhatsApp Codice Della Strage: activism in Italy for safer streets
- Join a Critical Mass, Milano every Thursday evening, departure 22:00 from Piazza Mercanti. (You can use the Critical Maps app to follow the location of an ongoing CM.)
Books
- Jessie Singer - There Are No Accidents
- Mikael Colville-Andersen - Copenhagenize: The Definitive Guide to Global Bicycle Urbanism
- Grant Ennis - Dark PR: How corporate disinformation harms our health and the environment