GUIDANCE FOR USING RED LIGHT CAMERAS

Federal Highway AdministrationNational Highway Traffic Safety Administration

March 20, 2003


INTRODUCTION

UNDERSTANDING OF THE PROBLEM

PROBLEM IDENTIFICATION

COUNTERMEASURES AND THEIR APPLICATIONS

RED LIGHT CAMERA PROGRAM IMPLEMENTATION

REFERENCES

BIBLIOGRAPHY

APPENDIX A PHOTO RED LIGHT ENFORCEMENT LEGAL CONSIDERATIONS

LIST OF TABLES

Table 5-1 SELECTED RED LIGHT CAMERA SYSTEM ACQUISTION,
INSTALLATION, OPERATIONS, AND MAINTENANCE
ALTERNATIVES

Table 5-2 PAYMENT OPTIONS FOR CONTRACTOR OWNED AND OPERATED RED LIGHT CAMERA SYSTEMS

Table 5-3 PAYMENT OPTIONS FOR AGENCY OWNED AND CONTRACTOR OPERATED RED LIGHT CAMERA SYSTEMS

Table 5-4 PUBLIC AWARENESS AND EDUCATION CAMPAIGN ELEMENTS USED BY SELECTED RED LIGHT CAMERA PROGRAMS

Table 5-5 CAMERA UNITS COMPARED

RED LIGHT CAMERA PROGRAM IMPLEMENTATION

Traffic Signal Yellow Times

The MUTCD and ITE recommended practice on the lengths of yellow interval times provide adequate and proper direction to practitioners. Yellow times should be established in accordance with the MUTCD (17) guidelines and the ITE (7) informational report for methods for calculating yellow time intervals.

Changes in the yellow times after red light cameras are in place and operational will affect the number of photographed violations, increasing the number of violations when yellow times are shortened and reducing the number of violations when yellow times are lengthened. Where changes in the yellow times at intersections with red light cameras are required as the result of updated speed surveys or other factors, the changes should be clearly described in public information announcements. When yellow times are shortened, only warning notices should be issued for violations that are recorded for a reasonable amount of time after the change.