Consistency of video detection activation and deactivation times between day and night periods

Avery Rhodes, Kristofer Jennings, Darcy M. Bullock

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Video detection has become an increasingly popular technology for vehicle detection at signalized intersections. Among the potential disadvantages of this technology is the tendency of video detectors to activate early at night due to headlight reflection on the pavement. This early activation results in a dramatic increase in the length of the effective vehicle detection zone. This observed variation in the effective length of the vehicle detection zone that varies by ambient lighting condition and camera placement presents a very serious impediment for traffic engineers to design vehicle extension intervals that operate consistently during day, night, and transition periods. Further, the stochastic variation in the length of the vehicle detection zone length has the potential to create driver expectancy issues. Tables are included that report the observed average and range of detection zone length variations for 16 observed video cameras that were extensively calibrated by the manufacturer at the test site. The paper concludes by recommending near-side placement of video detection devices to reduce the stochastic variation in detection zone length.

Original languageEnglish (US)
Pages (from-to)505-512
Number of pages8
JournalJournal of Transportation Engineering
Volume133
Issue number9
DOIs
StatePublished - Sep 2007
Externally publishedYes

Fingerprint

activation
video
Chemical activation
Headlights
Video cameras
Pavements
work environment
engineer
Lighting
Cameras
driver
time
traffic
Detectors
Engineers

Keywords

  • Intelligent transportation systems
  • Statistics
  • Traffic control devices
  • Traffic management
  • Traffic signals
  • Traffic surveillance

ASJC Scopus subject areas

  • Civil and Structural Engineering

Cite this

Consistency of video detection activation and deactivation times between day and night periods. / Rhodes, Avery; Jennings, Kristofer; Bullock, Darcy M.

In: Journal of Transportation Engineering, Vol. 133, No. 9, 09.2007, p. 505-512.

Research output: Contribution to journalArticle

@article{c43a88de379a4e0bbd9245e647363f5e,
title = "Consistency of video detection activation and deactivation times between day and night periods",
abstract = "Video detection has become an increasingly popular technology for vehicle detection at signalized intersections. Among the potential disadvantages of this technology is the tendency of video detectors to activate early at night due to headlight reflection on the pavement. This early activation results in a dramatic increase in the length of the effective vehicle detection zone. This observed variation in the effective length of the vehicle detection zone that varies by ambient lighting condition and camera placement presents a very serious impediment for traffic engineers to design vehicle extension intervals that operate consistently during day, night, and transition periods. Further, the stochastic variation in the length of the vehicle detection zone length has the potential to create driver expectancy issues. Tables are included that report the observed average and range of detection zone length variations for 16 observed video cameras that were extensively calibrated by the manufacturer at the test site. The paper concludes by recommending near-side placement of video detection devices to reduce the stochastic variation in detection zone length.",
keywords = "Intelligent transportation systems, Statistics, Traffic control devices, Traffic management, Traffic signals, Traffic surveillance",
author = "Avery Rhodes and Kristofer Jennings and Bullock, {Darcy M.}",
year = "2007",
month = "9",
doi = "10.1061/(ASCE)0733-947X(2007)133:9(505)",
language = "English (US)",
volume = "133",
pages = "505--512",
journal = "Transportation engineering journal of ASCE",
issn = "0733-947X",
publisher = "American Society of Civil Engineers (ASCE)",
number = "9",

}

TY - JOUR

T1 - Consistency of video detection activation and deactivation times between day and night periods

AU - Rhodes, Avery

AU - Jennings, Kristofer

AU - Bullock, Darcy M.

PY - 2007/9

Y1 - 2007/9

N2 - Video detection has become an increasingly popular technology for vehicle detection at signalized intersections. Among the potential disadvantages of this technology is the tendency of video detectors to activate early at night due to headlight reflection on the pavement. This early activation results in a dramatic increase in the length of the effective vehicle detection zone. This observed variation in the effective length of the vehicle detection zone that varies by ambient lighting condition and camera placement presents a very serious impediment for traffic engineers to design vehicle extension intervals that operate consistently during day, night, and transition periods. Further, the stochastic variation in the length of the vehicle detection zone length has the potential to create driver expectancy issues. Tables are included that report the observed average and range of detection zone length variations for 16 observed video cameras that were extensively calibrated by the manufacturer at the test site. The paper concludes by recommending near-side placement of video detection devices to reduce the stochastic variation in detection zone length.

AB - Video detection has become an increasingly popular technology for vehicle detection at signalized intersections. Among the potential disadvantages of this technology is the tendency of video detectors to activate early at night due to headlight reflection on the pavement. This early activation results in a dramatic increase in the length of the effective vehicle detection zone. This observed variation in the effective length of the vehicle detection zone that varies by ambient lighting condition and camera placement presents a very serious impediment for traffic engineers to design vehicle extension intervals that operate consistently during day, night, and transition periods. Further, the stochastic variation in the length of the vehicle detection zone length has the potential to create driver expectancy issues. Tables are included that report the observed average and range of detection zone length variations for 16 observed video cameras that were extensively calibrated by the manufacturer at the test site. The paper concludes by recommending near-side placement of video detection devices to reduce the stochastic variation in detection zone length.

KW - Intelligent transportation systems

KW - Statistics

KW - Traffic control devices

KW - Traffic management

KW - Traffic signals

KW - Traffic surveillance

UR - http://www.scopus.com/inward/record.url?scp=34548168850&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548168850&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)0733-947X(2007)133:9(505)

DO - 10.1061/(ASCE)0733-947X(2007)133:9(505)

M3 - Article

VL - 133

SP - 505

EP - 512

JO - Transportation engineering journal of ASCE

JF - Transportation engineering journal of ASCE

SN - 0733-947X

IS - 9

ER -