Evaluating the Effectiveness of Dynamic Speed Display Signs

Jeihani, Mansoureh; Ardeshiri, Anam; Naeeni, Amir

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Evaluating the Effectiveness of Dynamic Speed Display Signs

2012-09-01
By Jeihani, Mansoureh ; Ardeshiri, Anam ; Naeeni, Amir

File Language:

English

Details

Creators:

Jeihani, Mansoureh ; Ardeshiri, Anam ; Naeeni, Amir
Corporate Creators:

Morgan State University. Dept. of Transportation and Urban Infrastructure Studies
Corporate Contributors:

United States. Department of Transportation. University Transportation Centers (UTC) Program
Subject/TRT Terms:
Resource Type:

Tech Report
Geographical Coverage:

Maryland
Edition:

Final report.
Corporate Publisher:

Morgan State University. National Transportation Center
Abstract:

This study investigates the impact of dynamic speed display signs (DSDSs) on drivers’ speed-related ; behavior. A survey questionnaire regarding attitudes and reactions to DSDSs on different road ; classes was distributed to Maryland drivers of different ages and socioeconomic backgrounds. In ; addition, the research team collected vehicle speed data upstream and downstream of the DSDS ; location on different corridors. The data was collected with a portable Trax Flex High Speed ; Counter, which records vehicles’ length, speed, and number of axels as they pass over the device’s ; tubes on the road. The speed data was collected on three roads with different speed limits: 25 mph, ; 35 mph, and 45 mph. Conventional statistical analysis, Bayesian network, and planned behavior ; theory were applied to assess the DSDS’ effectiveness with reducing speed. To investigate the shortterm ; and long-term effects of the DSDS, the research team collected the data in different periods ; (few days to few months) after the installation. Furthermore, the effective distance for the DSDS was ; investigated. Two different sizes of the DSDS were used to find the impact of size on drivers’ ; compliance.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/25042/dot_25042_DS1.pdf
File Type:

[PDF - 2.69 MB]
Collection(s):

University Transportation Centers ; US Transportation Collection
Main Document Checksum:

urn:sha-512:8f33960539cc1e86cb1eb3e0645340f3194e71bdc47cd279440654238c2cf7f95f9b45d934b67b3fed43431d8e3067aa1b3b9e5fa0167c8228fd86412b17c56b

File Language:

English

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