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Methods of three-dimensional sight distance inspection for highway(PDF)

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

Issue:
2009年03期
Page:
54-57
Research Field:
Publishing date:
2009-06-20

Info

Title:
Methods of three-dimensional sight distance inspection for highway
Author(s):
ZHANG Chi; YANG Shao-wei; ZHAO Yi-fei; PAN Bing-hong
Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang’an University,Xi’an 710064,Shaanxi,China
Keywords:
road engineering;  3D sight distance;  sight distance inspection;  road model;  safety appraisal
PACS:
U412.3
DOI:
-
Abstract:
In order to accurately calculate the actual sight distance in threedimensional space, combined with road alignment in horizontal, vertical and lateral section, a threedimensional (3D) calculation model and 3D sight distance calculation model of road alignment are proposed, based on driving sight distance for highway. By inspecting the height relationship between an arbitrary point of line of sight and associated road point, the authors judge whether the surface and roadside cause occlusion about line of sight. Finally, the authors put forward the procedure of threedimensional sight distance test. This model provides realization means for automatic checking of 3D sight distance and offers technological support for safety appraisal by using 3D sight distance. 2 tabs, 5 figs, 10 refs.

References:

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Last Update: 2009-06-20