Computer Control of Tunnel Systems
An active Tunnel Surveillance and Control System (TSCS) is generally indicated for long highway tunnels. The TSCS uses a computer system, detection devices and a communication system to...
Knowledge Based Expert Systems for Post-Incident Freeway Traffic Control
A knowledge based expert system for rerouting traffic upstream of an accident or other capacity-reducing incident on a freeway network is developed and compared with results obtained using...
Computer Aided Design of Traffic Signal Systems
Computer Aided Design and Drafting (CADD) has traditionally been the domain of powerful and expensive computers. Personal computer technology, however, is rapidly changing this trend by:...
Integrating Roadway Data in a Corporate Database
For road and highway management it is becoming increasingly important to integrate data such as: traffic, accidents, geometrics, pavement condition, maintenance and construction history....
Synthetic O-D Microcomputer Trip Table Packages
Three microcomputer models for synthetic estimation of origin-destination trip tables are compared based on theoretical foundations, implementability, and operating performances. Each...
A Computerized Hazardous Material Incidents Database
This paper reports on the development of a microcomputer database management system for hazardous material incidents that occurred on highways and at fixed sites in Arizona. The objective...
Microcomputer Based Traffic Signal Inventory Records
This paper describes microcomputer software used by District 12 of the Texas State Department of Highways and Public Transportation to provide for a constantly updated inventory of traffic...
World Bank's HDM-PC: A Microcomputer Aid for Road Planning and Management
HDM-PC, a microcomputer adaptation of the mainframe Highway Design and Maintenance Standards Model (HDM-III), is a powerful analytical tool for the engineering-economic evaluation of road...
A Bridge Management System Module for the Selection of Rehabilitation and Replacement Projects
A procedure, developed for the state of Texas is reported, which determines an allocation budget for bridge replacement and rehabilitation projects, using multi-attribute criteria and...
Database Network for Innovative Maintenance Operations
This paper provides a summary of the main documentation supporting users of the MAINeT Highway Maintenance Innovations Network. More specifically, the paper explains how to: - find, review,...
Arterial Traffic Flow in Construction Zones
Previously, NETSIM (NETwork SIMulation model) was the only available simulation model that could investigate a wide mix of traffic control and traffic management strategies for a network...
Validation of a Traffic Modeling System for Detour Planning
The Downtown Seattle Transit Project (DSTP) was initiated as an effort to relieve existing traffic congestion in downtown Seattle. It consists primarily of a 1.3-mile electric-bus tunnel...
Interfacing Pavement Management and Design Process
Pavement management systems coordinate all the activities required to provide pavements for the traveling public in a cost efficient manner. Information for the pavement management system...
Lapsize Computers and Local Pavement Management
The purpose of this study is to examine the use of a portable computer, the GRIDcase Plus, in local pavement management. A software program in BASIC is developed to run on the GRID, to...
A Microcomputer Methodology for Parsimoniously Structuring a Set of Activities
The paper develops a systematic methodology to aid in the identification and rapid structuring of a system of activities. In essence, the user is asked to supply only the names of the...
Estimating Toll Diversion for Beltways
The proposed E-470 beltway is a 48-mile circumferential highway which will connect major public and private developments east of the Denver metropolitan area as well as the new Denver...
Transit Scheduling Using Computer Graphics
Graphical scheduling has been very popular throughout the world, but until recently, has not been available for a computerized scheduling system. Computerized graphical scheduling systems...
A Matching Algorithm That Eliminates the Need for Radio Signposts in Automatic Passenger Counters on Buses
Volumes of raw data collected using the Automatic Data Aquisition system are useless until they can be processed and transformed into meaningful reports and plots. This is done using a...
GRREATdB - GRaphic Roadway Editor and Analysis Tool
This paper describes the development and use of a tool to link textual databases to road network-based interactive graphics. Advantages of the system are discussed. The GRREATdB program...
Processing Automatically Collected Patronage Data
Since the late 1970's, the San Francisco Bay Area Rapid Transit District (BART) has had the capability to automatically collect trip origin and destination data from its faregates. This...
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