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Media type:
E-Article
Title:
Capacity of Freeway Weaving Segments
Contributor:
Roess, Roger P.;
Ulerio, Jose M.
imprint:
SAGE Publications, 2009
Published in:Transportation Research Record: Journal of the Transportation Research Board
Language:
English
DOI:
10.3141/2130-05
ISSN:
0361-1981;
2169-4052
Origination:
Footnote:
Description:
<jats:p> The analysis methodology for freeway weaving segments specified in the current Highway Capacity Manual (HCM 2000) provides a cumbersome set of multipage tables for the determination of weaving segment capacity. As part of NCHRP Project 3-75, Analysis of Freeway Weaving Sections, a more straightforward approach to estimating weaving segment capacity has been developed. This paper presents the methodology and discusses its background and development. The methodology continues to define capacity as in the HCM 2000: capacity occurs primarily when a density of 43 passenger cars per mile per lane is reached. Various other controls in HCM 2000 are replaced with revised limits on the number of weaving vehicles that can be accommodated in a weaving segment. The methodology substitutes a regression-based equation for the cumbersome tables of the HCM 2000. </jats:p>