00756232

Component

https://doi.org/10.3141/1643-20

http://scholar.google.com...inge&publication_year=1998

The results of a two-year field test of nonintrusive traffic detection technologies are presented. Seventeen devices representing the following eight technologies were evaluated: passive infrared, active infrared, magnetic, radar, doppler microwave, pulse ultrasonic, passive acoustic, and video. The devices were tested in a variety of environmental and traffic conditions at both intersection and freeway test sites. Emphasis was placed on urban traffic conditions, such as heavy congestion; locations that typify temporary counting situations, such as 48-hour or peak hour counts; and performance in the wide variety of weather conditions found in Minnesota. The evaluation also focused on the ease of system set-up and general system reliability. The results show that nonintrusive technologies are capable of performing as well as conventional methods in some, but not all, situations. At the freeway test site, most nonintrusive devices counted within 3% of baseline data. At the intersection test site, however, congested stop-and-go traffic hindered the performance of the majority of the devices. Weather and other environmental variables were found to have minimal impact on the majority of devices. This test is the first phase of an ongoing project to evaluate new, nonintrusive technologies and devices. Further research will expand into areas such as real-time data collection to support intelligent transportation system applications.

This paper appears in Transportation Research Record No. 1643, Pavement Management and Monitoring of Traffic and Pavements.

English

p. 161-170

1998

Transportation Research Record

0309065151

Figures (4) ; Photos (7) ; Tables (3)

Acoustic detectors; Data collection; Detectors; Field tests; Freeways; Infrared detectors; Intersections; Magnetic detectors; Radar detectors; Reliability; Traffic; Traffic congestion; Traffic data; Ultrasonics; Urban areas; Weather conditions

Doppler microwave; Video technology

Minnesota

Minnesota

Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Nov 18 1998 12:00AM

• "OFF-THE-WALL" PAVEMENT DISTRESS VARIABILITY STUDY
• A COMPARATIVE STUDY OF RIDE QUALITY MEASURING DEVICES
• ALGORITHM DEVELOPMENT FOR DERIVATION OF SECTION-RELATED MEASURES OF TRAFFIC SYSTEM PERFORMANCE USING INDUCTIVE LOOP DETECTORS
• ANALYSIS OF PAVEMENT MANAGEMENT ACTIVITIES PROGRAMMING BY GENETIC ALGORITHMS
• ASSESSMENT OF LONG-TERM PAVEMENT PERFORMANCE PLAN WALL PROJECTION-BASED DISTRESS DATA VARIABILITY
• CONTRACTING FOR PAVEMENT DISTRESS DATA COLLECTION
• DEVELOPMENT OF DISTRESS PROGRESSION MODELS USING PANEL DATA SETS OF IN-SERVICE PAVEMENTS
• DEVELOPMENT OF KNOWLEDGE-BASED FORMULA TO PRIORITIZE PAVEMENT REHABILITATION PROJECTS
• EFFECT OF NOISY DATA ON PAVEMENT PERFORMANCE PREDICTION BY ARTIFICIAL NEURAL NETWORKS
• ELECTRONIC PERMITTING ISSUANCE SYSTEM FOR OVERSIZE/OVERWEIGHT VEHICLES
• ENGINEERING APPLICATION OF WASHINGTON STATE'S PAVEMENT MANAGEMENT SYSTEM
• INTERNATIONAL STANDARDS ORGANIZATION-COMPATIBLE INDEX FOR PAVEMENT ROUGHNESS
• MINIMUM PAVEMENT TEMPERATURE MODELING AND MAPPING FOR ALASKAN CONDITIONS
• PAVEMENT DETERIORATION, RATE OF DYNAMIC FORCE, AND RIDE QUALITY
• PAVEMENT PRESERVATION STRATEGY
• PROJECT SCOPING USING FALLING WEIGHT DEFLECTOMETER TESTING: NEW JERSEY EXPERIENCE
• SWITCHING TO INTERNATIONAL ROUGHNESS INDEX
• TRUCK TRAFFIC CROSSING TEXAS-MEXICO BORDER
• TRUCK WEIGHT ENFORCEMENT MEASURES OF EFFECTIVENESS: DEVELOPMENT AND SOFTWARE APPLICATION
• UPDATE OF LONG-TERM PAVEMENT PERFORMANCE MANUAL DISTRESS DATA VARIABILITY: BIAS AND PRECISION
• VEHICLE RE-IDENTIFICATION AND TRAVEL TIME MEASUREMENT IN REAL-TIME ON FREEWAYS USING EXISTING LOOP DETECTOR INFRASTRUCTURE