00474264

Component

http://onlinepubs.trb.org...trr/1986/1069/1069-017.pdf

https://scholar.google.co...+Eck&publication_year=1986

The U.S. Department of Transportation developed a resource allocation model to assist state highway agencies in setting priorities for rail-highway grade crossing improvement programs. Because of the size of the supporting data bases, use of the model has required a mainframe computer. Use of the microcomputer for the resource allocation model avoids the lengthy turnaround times and high costs associated with mainframes. The process of adapting the model and associated data bases to an Apple II+ microcomputer is described. Data needed by the user are manipulated on a mainframe by using an appropriate data base management system. When the data for a given state are in an acceptable format, they are transferred to diskette using a commercial communications software package. The user can then implement the programs that make up the resource allocation model. Guidance on implementing the package is given. The adapted programs are written in Applesoft BASIC and are user friendly. The resource allocation procedure has been made interactive; users can change funding levels or equipment costs and determine in a matter of minutes the impact on the grade crossing program. Several conclusions have been drawn and recommendations made. Various methods for making the results of this effort available to interested parties are suggested.

Publication of this paper sponsored by Committee on Railroad-Highway Grade Crossings. Publication of this paper sponsored by Committee on Traffic Control Devices. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

00490259

HS-040 106

pp 101-109

1986

Transportation Research Record

0-309-04063-9

Print

Figures (1) ; References (7) ; Tables (7)

Improvements; Mathematical models; Microcomputers; Railroad grade crossings; Resource allocation; Strategic planning; User interfaces (Computer science)

Interactive computing; Models

Highways; Operations and Traffic Management; Railroads; Safety and Human Factors; I73: Traffic Control

HSL, TRIS, TRB

Oct 31 1990 12:00AM

• A FURTHER NOTE ON UNDULATION AS A SPEED CONTROL DEVICE
• A PROBABILISTIC APPROACH FOR DETERMINING THE CHANGE INTERVAL (DISCUSSION AND CLOSURE)
• A REASSESSMENT OF THE TRAFFIC SIGNAL CHANGE INTERVAL
• ACCIDENT EXPERIENCE OF FLASHING TRAFFIC SIGNAL OPERATION IN PORTLAND, OREGON
• ANALYTICAL WARRANT FOR SEPARATE LEFT-TURN PHASING (ABRIDGMENT)
• COUNTERING SIGN VANDALISM WITH PUBLIC SERVICE ADVERTISING (ABRIDGMENT)
• CRITIQUE OF RAIL-HIGHWAY GRADE CROSSING EFFECTIVENESS RATIOS AND RESOURCE ALLOCATION PROCEDURES (DISCUSSION AND CLOSURE)
• EFFECTIVENESS OF FLASHING BEACONS IN REDUCING ACCIDENTS AT A HAZARDOUS RURAL CURVE (ABRIDGMENT)
• GUIDELINES FOR PROTECTED/PERMISSIVE LEFT-TURN SIGNAL PHASING
• GUIDELINES FOR SELECTING TYPE OF LEFT-TURN PHASING
• RUMBLE STRIPS AND PAINT STRIPES AT A RURAL INTERSECTION
• THE EFFECTS OF WIDE EDGE LINES ON LATERAL PLACEMENT AND SPEED ON TWO-LANE RURAL ROADS
• THE SAFETY, ECONOMIC, AND ENVIRONMENTAL CONSEQUENCES OF REQUIRING STOPS AT RAILROAD-HIGHWAY CROSSINGS
• THE USE OF CONSTANT WARNING TIME SYSTEMS AT RAIL-HIGHWAY GRADE CROSSINGS
• TIMING DESIGN OF SIGNAL CHANGE INTERVALS (DISCUSSION AND CLOSURE)
• TIMING DESIGN OF TRAFFIC SIGNALS
• VALIDATION OF A TRAFFIC MODEL