A survey of drivers in Glasgow, Scotland, found that 59 percent of respondents thought that ramp metering was very helpful or fairly helpful.
- Traffic signal timing at intersections were optimized every 2 minutes using linear-quadratic programming to balance the number of vehicles traveling on urban links.
- Ramp meter wait times were adjusted every 60 seconds using the ALINEA (Asservissment LINeaire d’Entrée Autoroutière) strategy to maintain freeway flow downstream of merging locations.
- DMS boards were used to provide alternative route information and equalize travel times between competitive routes.
The evaluation project considered the impacts of TUC on the entire urban network as well as areas in and around the deployment area. The evaluation was completed in March of 1998.
Three hundred and forty-five (345) mail-back post card questionnaires were received to evaluate user acceptance. Fifty-nine (59) percent of respondents found ramp metering very or fairly helpful, 29 percent found it not very helpful, and less than 1 percent found it not helpful at all.
Tarry, Steve and Martin Pyne. UK-M8 Motorway Ramp Metering (TABASCO Project). European Commission Directorate General Energy and Transportation, TEMPO Secretariat, (Document No. SW0203). 13 February 2003.
Application and Evaluation of the Integrated Traffic-Responsive Urban Corridor Control Strategy (IN-TUC) in Glasgow
Author: Diakaki, Christina, et al.
Published By: Paper presented at the 79th Annual Transportation Research Board Meeting. Washington, District of Columbia
Source Date: January 2000
Average User Rating
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Typical Deployment Locations