Consideration of Environmental Factors in Transportation Systems Planning

This chapter analyzes the role of users in enacting Intelligent Transportation Systems (ITS) functions and services. Preliminary evidence from recent demonstrations and market research studies is reviewed with a focus on the role of travelers in producing and using information about traffic conditions and traveler options. The potential for systems development is then considered with specific regard to alternative mode travel, flexible travel, emergency, and commercial services. Based on these findings, several directions and recommendations are made for creating the next generation of ITS systems that enhance user-based elements. Several areas for research and development are recommended, including integrating a wider range of market segments into ITS systems planning, developing a better understanding of how users drive complex systems, and creating new institutional partnerships for delivering innovative services.

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Transportation systems planning

10.1016/b978-0-12-822185-3.00008-x ◽

2022 ◽

pp. 17-81

Author(s):

Leta F. Huntsinger

Keyword(s):

Transportation Systems ◽

Systems Planning

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Effect of Environmental Factors on Driver Speed: A Case Study

Transportation Research Record Journal of the Transportation Research Board ◽

10.3141/1635-21 ◽

1998 ◽

Vol 1635 (1) ◽

pp. 155-161 ◽

Cited By ~ 28

Author(s):

Wei Lien Liang ◽

Michael Kyte ◽

Fred Kitchener ◽

Patrick Shannon

Keyword(s):

Environmental Factors ◽

Intelligent Transportation Systems ◽

Intelligent Transportation ◽

Transportation Systems ◽

Passenger Cars ◽

Factors Affecting ◽

Operational Test ◽

Field Operational Test ◽

Baseline Conditions

A case study on the effects of visibility and other environmental factors on driver speed was conducted as part of an intelligent transportation systems field operational test to reduce accidents caused by sudden changes in visibility levels. Baseline conditions established normal vehicle speeds for passenger cars and trucks. Reduced visibility and winds exceeding 40 km/h were found to be the primary factors affecting driver speed.

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