Speed and delay on signalized arterials
- Univ. of California, Berkeley, CA (United States). Inst. of Transportation Studies
This paper presents a model to predict the influence of traffic flow on the running speed of signalized arterials in Montgomery County, Maryland, while controlling for link length, the number of lanes, and route type. The model separates the changes to link running speed due to same-direction traffic and intersection approach delay from cross-traffic. It is found that flow has a small impact on link speed, each 1,000 v/l/h reduces speed by 4--8 k/h. Longer links have higher speeds, indicating that they more closely approximate free-flow conditions. Measures of intersection and link travel times are also compared. Although link running times exceed intersection stopped delay in general, total intersection delay (stopped and approach) exceeds the delay caused by same-direction traffic. This information can inform investment decision makers about roadway and intersection improvements.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 289976
- Journal Information:
- Journal of Transportation Engineering, Journal Name: Journal of Transportation Engineering Journal Issue: 3 Vol. 124; ISSN JTPEDI; ISSN 0733-947X
- Country of Publication:
- United States
- Language:
- English
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