在高速公路上设置窄车道和窄路肩——经验、当前实践和实施注意事项入门（英）FHWA 2016.pdf

USE OF NARROW LANES AND

NARROW SHOULDERS ON FREEWAYS:

A Primer on Experiences, Current Practice, and Implementation Considerations

PRACTICAL DESIGN FOR OPERATIONS

Notice

This document is disseminated under the sponsorship of the U.S. Department of Transportation

in the interest of information exchange. The U.S. Government assumes no liability for the use of

the information contained in this document.

The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturers’

to ensure continuous quality improvement.

Cover Photo Source: Kittelson & Associates, Inc.

Neudorff, L. (CH2M), Jenior, P., Dowling, R., Nevers, B.

(Kittelson & Associates, Inc.)

901 New York Ave NW

Washington, DC 20001

Under contract to:

Kittelson & Associates Inc.

300 M Street SE, Suite 810

Washington, DC 20001

Technical Report

within the existing roadway footprint by reducing the widths of the existing lanes and/or shoulders. The additional lane may be utilized by all trafc at

all times, as a special use or managed lane that is open only to specic types of vehicles or movements (e.g., High Occupancy Toll (HOT) lane, exit

only lane), or only during selected times of the day and/or when congestion warrants opening the lane (e.g., temporary shoulder use). Narrow lanes

This primer provides information to policy makers, transportation agency managers, designers and operators on the use of narrow lanes and

narrow shoulders to improve capacity within an existing roadway footprint. Much of the information contained in the primer is presented in the

broader context of both Performance Based Planning and Programming (PBPP) and Performance – Based Practical Design (PBPD). Primer

contents include case studies on the use of narrow lanes, issues and approaches for analyzing the operational and safety impacts of narrow lanes

and narrow shoulders, and the role of transportation systems management and operations (TSMO) in support of narrow lanes operations.

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square feet 0.093 square meters m

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square yard 0.836 square meters m

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poundforce per square inch 6.89 kilopascals kPa

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