|Table of Contents|

Calculation model of minimum net distance between interchanges on eight-lane expressway(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2012年04期
Page:
31-37
Research Field:
Publishing date:

Info

Title:
Calculation model of minimum net distance between interchanges on eight-lane expressway
Author(s):
WU Ming-xian1;  PAN Bing-hong1; 2;  WANG Zuo1;  KONG Ling-chen2; GUO Teng-feng1
1. CCCC First Highway Consultants Co Ltd, Xi'an 710075, Shaanxi, China; 2. Key Laboratory for Special Area Highway Engineering of the Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
road engineering;  eight-lane expressway;  minimum net distance;  gap acceptance;  probability theory;  calculus;  kinematics
PACS:
U491
DOI:
-
Abstract:
To solve the problem that the specified value of minimum net distance between interchanges on design specification for highway alignment can't adapt to the eight-lane expressway, and avoid traffic disorder and safety issues caused by the short distance between interchanges, the traffic operation characteristics and lane changing maneuvers were analyzed, the calculation model of minimum net distance between interchanges on eight-lane expressway was constructed. Combining probability theory, calculus, gap acceptance theory and kinematics, the necessary lengths that drivers change to the inside lane from the outside lane and change to the outside lane from the inside lane were respectively analyzed in terms of waiting and running for the gap acceptance, the key parameters were defined based on field survey. The results show that the minimum net distance between interchanges on eight-lane expressway is 2.2 km. 3 tabs, 3 figs, 11 refs.

References:

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Last Update: 2012-08-30