Abstract

https://ssrn.com/abstract=1600786
 
 

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City Structure and Congestion Costs


Francesco Trebbi


Vancouver School of Economics; National Bureau of Economic Research (NBER)

Matilde Bombardini


University of British Columbia (UBC)

March 1, 2010

Chicago Booth Research Paper No. 10-20

Abstract:     
This paper presents a model and an automated methodology for decomposing congestion costs in cities. We model a city as a directed graph and define the planner’s problem of finding the subgraph minimizing the congestion costs (latency) of endogenously-routing traffic flowing through the subgraph. We show that the minimal total latency subnetwork displays congestion directly proportional to city population. By applying an automated search algorithm on a widely available Internet mapping application, and hence sampling from the empirically implemented subgraphs, the paper estimates the congestion-minimizing distortions of city transit networks in a large sample of United States and Italian cities.

Number of Pages in PDF File: 49


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Date posted: May 6, 2010  

Suggested Citation

Trebbi, Francesco and Bombardini, Matilde, City Structure and Congestion Costs (March 1, 2010). Chicago Booth Research Paper No. 10-20. Available at SSRN: https://ssrn.com/abstract=1600786 or http://dx.doi.org/10.2139/ssrn.1600786

Contact Information

Francesco Trebbi (Contact Author)
Vancouver School of Economics ( email )
University of British Columbia
6000 Iona Dr.
Vancouver Canada, BC V6T 1L4
Canada
HOME PAGE: http://faculty.arts.ubc.ca/ftrebbi/
National Bureau of Economic Research (NBER) ( email )
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
Matilde Bombardini
University of British Columbia (UBC) ( email )
2329 West Mall
Vancouver, British Columbia BC V6T 1Z4
Canada
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