|
|
|
Title: Road network circuity in metropolitan areas
Accession Number: 01506668
Record Type: Component
Availability: Transportation Research Board Business Office 500 Fifth Street, NW Abstract: Circuity, the ratio of network to Euclidean distances, describes the directness of trips and the efficiency of transportation networks. This paper measures the circuity of the 51 most populated Metropolitan Statistical Areas (MSAs) in the United States and identifies trends in those circuities between 1990 and 2010. Overall circuity has increased between 1990 and 2010: random points have not only become farther apart in distance, their shortest network path has become more circuitous, suggesting that the more recently constructed parts of street networks are laid out more circuitously than older parts of the network. Over this period, 35 MSAs experienced a statistically significant increase in circuity (6 experienced a significant decrease). As expected, short trips are more circuitous than long trips. A new circuity distance decay function describes how circuity varies with distance within metropolitan areas. The parameters of this function have changed from 1990 to 2010.
Supplemental Notes: This paper was sponsored by TRB committee ADA20 Metropolitan Policy, Planning, and Processes.
Monograph Title: Monograph Accession #: 01503729
Report/Paper Numbers: 14-0955
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Giacomin, David JLevinson, David MPagination: 19p
Publication Date: 2014
Conference:
Transportation Research Board 93rd Annual Meeting
Location:
Washington DC Media Type: Digital/other
Features: Figures; Maps; References; Tables
TRT Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure
Source Data: Transportation Research Board Annual Meeting 2014 Paper #14-0955
Files: TRIS, TRB, ATRI
Created Date: Jan 27 2014 2:23PM
|
