Capacity and Operational Effects of Midblock Left-turn Lanes

Capacity and Operational Effects of Midblock Left-turn Lanes
Author: James A. Bonneson
Publisher: Transportation Research Board
Total Pages: 148
Release: 1997
Genre: Technology & Engineering
ISBN:

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.

Capacity and Operational Effects of Midblock Left-turn Lanes

Capacity and Operational Effects of Midblock Left-turn Lanes
Author: James A. Bonneson
Publisher: Transportation Research Board
Total Pages: 148
Release: 1997
Genre: Technology & Engineering
ISBN: 9780309060677

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.

Operational Impacts of Median Width on Larger Vehicles

Operational Impacts of Median Width on Larger Vehicles
Author: Douglas W. Harwood
Publisher: Transportation Research Board
Total Pages: 80
Release: 2000
Genre: Transportation
ISBN: 9780309068659

This synthesis report will be of interest to officials and staff of municipal, regional, and statewide transportation agencies responsible for roadway design and traffic control. It will be of special interest to those concerned with intersections and driveways on divided highways where larger vehicles encounter narrow medians. It will also be of interest to other professionals who interact with these agencies to mitigate such problems. This report presents state-of-the-practice information about current median design policies and practices, describes the traffic operational and safety problems encountered in designing for larger vehicles at divided highway intersections, and identifies alternative improvement techniques that can be used in new construction or reconstruction projects to avoid introducing traffic operational and safety problems. This TRB report focuses on 10 alternative cross sections widely used on arterial highways in urban, suburban, and rural environment.

Safety of U-turns at Unsignalized Median Openings

Safety of U-turns at Unsignalized Median Openings
Author: Ingrid B. Potts
Publisher: Transportation Research Board
Total Pages: 142
Release: 2004
Genre: Median strips
ISBN: 0309088054

"TRB's National Cooperative Highway Research Program (NCHRP) Report 524: Safety of U-Turns at Unsignalized Median Openings includes recommended guidelines for locating and designing unsignalized median openings, and a methodology for comparing the relative safety performance of different designs"--Publisher's description.

State of the Practice in Highway Access Management

State of the Practice in Highway Access Management
Author: Jerome S. Gluck
Publisher: Transportation Research Board
Total Pages: 124
Release: 2010
Genre: Highway engineering
ISBN: 0309143055

This synthesis reports how various agencies have acted on the various components of an access management program, what have been barriers to action, and how new efforts might improve implementation of access management strategies. Primary focus areas considered are legal and legislative bases, contents of policies and programs, implementation aspects, reported effectiveness of program implementation, and profiles of contemporary practice. This synthesis reports on the state of the practice with respect to planning, highway design, development review and permitting, and other focus areas where access management is typically incorporated. The emphasis is placed on states, but counties, municipalities, and metropolitan planning organizations are also considered.

Operational Analysis of Bus Lanes on Arterials

Operational Analysis of Bus Lanes on Arterials
Author: Kevin St. Jacques
Publisher: Transportation Research Board
Total Pages: 84
Release: 1997
Genre: Technology & Engineering
ISBN: 9780309062503

Contains guidelines for estimating bus lane capacities and speeds along arterial streets. It recommends level-of-service thresholds for buses based on speed, and it presents procedures for estimating the speed of buses using dedicated bus lanes on arterial streets.

Progress Report

Progress Report
Author: National Cooperative Highway Research Program
Publisher:
Total Pages: 240
Release: 2002
Genre: Highway engineering
ISBN: