How do Travel Demand and Economics Affect the Development of Urban Road Networks?


A Model of the Rise and Fall of Roads (33 page pdf,  Zhang, LeiLevinson, David M, Systems Symposium at the Massachusetts Institute of Technology, Mar. 2004)

Today we review a seminal paper from over a decade ago that examines the dynamics of road development in a major mid-West American city (Minneapolis-Saint Paul) using a model that combines measures such as travel demand statistics (usually found on Origin Destination studies) with the economics of road pricing or tolls, geographical constraints (such as rivers and mountains) and how these change with newer technology over time (in this case over 20 years). Roads represent both figuratively and physically the link that join the issues addressed in this blog: how traffic is linked to pollution and how pollution is linked to health. Of particular interest is the way that travel demand and road volume capacity (VC) interact with road tolls and the cost of road construction and the resulting revenue that may be used to ease congestion, in addition to the overall design of the road network and design for a major urban area.

road-links

To see Key Quotes and Links to key reports about this post, click HERE

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