Author: Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 38
Book Description
Cost-effectiveness Methodology for Two-way Left-turn Lanes on Urban Four-lane Roadways
Author: Cost-effectiveness Evaluation of Two-way Left-turn Lanes on Urban Four-lane Roadways
Author: Patrick T. McCoyPublisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 106
Book Description
This report documents the research done to develop guidelines for the use of two-way left-turn lane medians on urban four-lane roadways.
Impacts of Access Management Techniques
Author: Jerome S. GluckPublisher: Transportation Research Board
ISBN: 9780309063128
Category : Technology & Engineering
Languages : en
Pages : 168
Book Description
Cost-Effectiveness Evaluation of Turning Lanes on Uncontrolled Approaches of Rural Intersections
Author: Patrick T. McCoyPublisher:
ISBN:
Category : Highway planning
Languages : en
Pages : 204
Book Description
A study of turning lanes on uncontrolled approaches of rural intersections. Construction and maintenance costs, safety, and guidelines used to warrant turning lane construction based on traffic volumes are included.
Computer Simulation Study of the Operational Effects of Two-way Left-turn Lanes on Urban Four-lane Roadways
Author: Patrick T. McCoyPublisher:
ISBN:
Category : Traffic engineering
Languages : en
Pages : 28
Book Description
Effective Utilization of Street Width on Urban Arterials
Author: Douglas W. HarwoodPublisher: Transportation Research Board
ISBN: 9780309048538
Category : Roads
Languages : en
Pages : 60
Book Description
Government Reports Announcements & Index
Author: Capacity and Operational Effects of Midblock Left-turn Lanes
Author: James A. BonnesonPublisher: Transportation Research Board
ISBN: 9780309060677
Category : Technology & Engineering
Languages : en
Pages : 148
Book Description
The objective of this research project was to develop a methodology for evaluating alternative midblock left-turn treatments on urban and suburban arterials. The methodology had to be applicable to three common midblock left-turn treatments: the raised-curb median, the flush median with two-way left-turn lane (TWLTL) delineation, and the undivided cross section. The methodology developed for this research focuses on the evaluation of midblock street segments on urban and suburban arterials. The basis for NCHRP Report 395.
Guidelines for Right-turn Lanes on Urban Highways
Author: Patrick T. McCoyPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 92
Book Description
Safety Evaluation of Installing Center Two-way Left-turn Lanes on Two-lane Roads
Author: Publisher:
ISBN:
Category : Left-turn lanes
Languages : en
Pages : 39
Book Description
"The Federal Highway Administration organized a Pooled Fund Study of 26 States to evaluate low-cost safety strategies as part of its strategic highway safety effort. One of the strategies chosen to be evaluated for this study was the installation of center two-way left-turn lanes on two-lane roads. This strategy is intended to reduce the frequency of crashes involving a turning vehicle, which could be classified as head on or rear end. Geometric, traffic, and crash data were obtained for 78 sites (34.9 km (21.3 mi)) in North Carolina, 10 sites (9.7 km (6.0 mi)) in Illinois, 31 sites (10.95 km (6.8 mi)) in California, and 25 sites (21.25 km (13.2 mi)) in Arkansas. Empirical Bayes methods were incorporated in a before-after analysis to determine the safety effectiveness of installing the two-way left-turn lanes (TWLTL's). There was a statistically significant reduction in total and rear-end crashes in each of four States whose installations were evaluated. Rural installations were found to be more effective in reducing crashes than urban ones in each of the four States. Lower cost installations of TWLTL's can be a cost-effective treatment for two-lane rural locations, especially those with a high frequency of rear-end collisions involving a lead vehicle desiring to make a turn"--Technical report documentation page.