Using travel diary data from 2000-2001 and 2010-12 this research examines fundamental traffic relationships at the metropolitan level. The results of this paper can help to explain the causes of some traffic phenomena. First, trip numbers on the network in the Minneapolis - St. Paul, Minnesota (Twin Cities) region show a bimodal diurnal pattern, with more trips in the afternoon. This relationship holds for full-time work and for non-work trips, but not part-time work trips. Second, network average speed by time of day can be explained by trip length and cumulative number of vehicles on the road. A clockwise hysteresis loop is found in the Metropolitan Fundamental Diagram in the morning period and a reverse process happens in the afternoon.
Wang, K, and Levinson, D. (2016) Towards a Metropolitan Fundamental Diagram using Travel Survey Data. PLoS One. 11(2): e0148660.
Nexus Working Papers;000126
The authors received funding from National Basic Research Program of China (No. 2012CB725403), and National Natural Science Foundation of China (Grant No.51338008 and 51378036). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Wang, Kai; Levinson, David M.
Towards a Metropolitan Fundamental Diagram using Travel Survey Data.
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