1 Minute Read? Road Networks Visualized

The World's Road Networks, Visualized As Beautiful Flowing Fractals

If cities are living things, roads are the veins that keep them alive, even at the mathematical level."

Jessica Leber 09.14.16 3:00 PM

Traffic - Understanding and fixing early problems in your city

A guide to understanding what causes early traffic problems and how to overcome them

By Από Maestro

Introduction

Unless you're a veteran to city building or just really good at traffic planning, you're bound to make mistakes when building your cities. We've all done it: built a great looking city block or estate and then realised that it's just not compatible with good traffic flow and we end up with nightmare gridlock and lots of frustration. If you build dense and imperfect, it's really hard to rectify problems without destroying parts of your city so it's important to plan ahead when you're building and leave room for further expansion of your road network.
In this guide, I intend to highlight some of the more common problems faced early on if you don't plan, help you to use the tools available to you to analyse the problem and show you what solutions work and what don't. And more importantly: why.

"Raw materials come from outside your city to your industrial estates. Your factories make them into finished goods which are transported via truck to the commercial district. Goods also get exported out of your city. CIMs travel to both of these places to work. CIMs will travel to the shops to buy stuff. Note that I've used a thicker line to indicate this is more people! Your CIMs will commute to their own place of work - some will work in factories and some will work in shops. However ALL of your CIMs will want to shop. In addition to this, every zone will require services - more and more as the game progresses. These services will need access to some or all of your zones depending on the service.
This flow of people and goods is vital when considering your transport infrastructures. But more on that later, we have a city to build, right? "

 

Read the entire findings >> here

 

Here are some other bits of information from two different sources

 

The Dynamic Behaviour of Road Traffic Flow

Stability or Chaos?

David Jarrett, Zhang Xiaoyan

Abstract

This paper is a report on work in progress on a project concerned with models of road traffic flow. Results for two such models are described and illustrated. One model is the classical car-following model. A number of numerical simulations were carried out, but no evidence of chaos was found. The other model concerns trip distribution. Here a dynamic formulation of the model results in some solutions which appear chaotic, and evidence of a period-doubling sequence of bifurcations is found.

Find it >> here