APPLYING THE LEVEL-OF-SERVICE CONCEPT TO CLIMBING LANES
A summary is presented of one phase of a multiphase study that deals with heavy-vehicle flow on downgrades and is concerned with geometric and flow warrants for the inclusion of truck climbing lanes on two-lane rural highways. One criterion for the introduction of climbing lanes on two-lane rural highways for both upgrade and downgrade directions is based on the level-of-service concept; another criterion is based on speed reduction. A suggested set of volume graphs is devised for the level-of-service criterion, and extensive use is made of a previously developed model for truck equivalency factors. A scheme for the relative location and signing of climbing lanes is also presented. (Authors)
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- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309032202
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Supplemental Notes:
- Publication of this paper sponsored by Committee on Geometric Design.
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Authors:
- Polus, Abishai
- Craus, Joseph
- Grinberg, Itzhak
- Publication Date: 1981
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 28-33
- Monograph Title: Highway geometric design
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Serial:
- Transportation Research Record
- Issue Number: 806
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Climbing lanes; Heavy vehicles; Level of service; Location; Road downgrades; Rural highways; Traffic equivalence factor; Traffic flow; Traffic speed; Trucks; Two lane highways; Upgrades (Roads); Warrants (Traffic control devices)
- Uncontrolled Terms: Speed changes
- Old TRIS Terms: Downgrade; Upgrade
- Subject Areas: Design; Highways; Motor Carriers; Planning and Forecasting; I21: Planning of Transport Infrastructure;
Filing Info
- Accession Number: 00342147
- Record Type: Publication
- ISBN: 0309032202
- Files: TRIS, TRB
- Created Date: Jan 29 1982 12:00AM