Advanced Freeway System Ramp Metering Strategies for Texas

Messer, Carroll J.

i

Advanced Freeway System Ramp Metering Strategies for Texas

1993-10-01
By Messer, Carroll J.

File Language:

English

Details

Creators:

Messer, Carroll J.
Corporate Creators:

Texas Transportation Institute. Texas A&M University
Corporate Contributors:

Texas Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Advanced Traffic Management Systems Algorithm Development Algorithms Corridors Demonstration Projects Freeways Laboratory Tests Operational Strategy Ramp Metering
Publication/ Report Number:

FHW A/TX-94/ 1232-23
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States
Edition:

Interim: September 1, 1991 - October 31, 1993
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

Freeway ramp metering systems have been used to improve urban freeway flow. However, control strategies must be properly adjusted to account for ramp queues overflowing onto surface streets and provide equitable on-ramp control during various operating periods. An improved solution can be obtained by optimizing this problem simultaneously for a group of time slices. This study identifies and examines a microcomputer-based optimization scheme that can assist in developing efficient freeway control strategies for on-line freeway surveillance and control. A multi-level freeway control structure is employed for which ramp metering control algorithms are developed for each level of control. Flow-based and lane occupancy-based system algorithms are presented. Detailed data file requirements are provided for each control level. A micro-computer prototype, or laboratory test version of the system level, will be described in a companion project report.
Format:

PDF
Funding:

0-1232
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:1e682e9ca55548da2137116425e29b655cdbd0da271ee78db56f6cf586e99df7073c803dfb435b5c6321613a0ea2a23ac13e84be4a658efb41c93bdd43d52760
Download URL:

https://rosap.ntl.bts.gov/view/dot/82187/dot_82187_DS1.pdf
File Type:

[PDF - 4.57 MB ]

File Language:

English

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