Evaluation of the Scottsdale Loop 101 automated speed enforcement demonstration program

Shin, Kangwon; Washington, Simon; Schalkwyk, Ida van

doi:10.1016/j.aap.2008.12.011

Cited by 69 publications

(27 citation statements)

References 27 publications

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“…mobile radars and fixed cameras providing fines to speed violators) indeed can effectively deter speeding in the general population (e.g. Goldenbeld and van Schagen, 2005;Shin et al, 2009), and thus reduce road crashes. Unfortunately, the deterring effects of such interventions are often only local, in that speeding is only reduced in the proximity of areas where driving speed is being monitored (Hauer et al, 1982).…”

Section: Current Road Safety Interventions: Speed Enforcement Toolsmentioning

confidence: 99%

Effects of Pay-As-You-Drive vehicle insurance on young drivers’ speed choice: Results of a Dutch field experiment

Bolderdijk

Knockaert

Steg

et al. 2011

Accident Analysis & Prevention

165

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a b s t r a c tSpeeding is an important cause for young drivers' involvement in traffic accidents. A reduction in driving speeds of this group could result in fewer accidents. One way of reducing driving speed is offering explicit financial incentives. In collaboration with five Dutch car insurance companies, we tested the effects of a Pay-As-You-Drive insurance fee on driving speed. A group of young drivers could save money on their monthly insurance fee by keeping the speed limit. Driving speed was monitored through GPS technology during one year. Analyses showed that, relative to pre-and post-measurement, as well as a control group, the introduction of a Pay-As-You-Drive insurance fee significantly reduced speed violations of young drivers.

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Section: Current Road Safety Interventions: Speed Enforcement Toolsmentioning

confidence: 99%

Effects of Pay-As-You-Drive vehicle insurance on young drivers’ speed choice: Results of a Dutch field experiment

Bolderdijk

Knockaert

Steg

et al. 2011

Accident Analysis & Prevention

165

View full text Add to dashboard Cite

show abstract

“…The city installed six speed enforcement cameras on a 6.5 mile stretch of the Arizona State Route 101 urban freeway in January 2006, and covered the cameras in October 2006. A comprehensive before-and-after analysis of the impact of the SEP on safety (Shin et al, 2009) revealed that the SEP led to significant reductions in crash frequencies, as summarized in Table 1. Using three different before-and-after methodologies, the SEP was shown to yield crash reduction factors (1-θ) ranging from 0.28 to 0.56, which indicates that the SEP is a promising countermeasure to improve safety.…”

Section: Introductionmentioning

confidence: 99%

How automated speed enforcement may reduce travel time variability and result in travel time savings: The case study of the loop 101 speed enforcement program in Scottsdale, Arizona

Shin

Washington

Choi

2011

KSCE Journal of Civil Engineering

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The city of Scottsdale Arizona implemented the first fixed photo Speed Enforcement camera demonstration Program (SEP) on a US freeway in 2006. A comprehensive before-and-after analysis of the impact of the SEP on safety revealed significant reductions in crash frequency and severity, which indicates that the SEP is a promising countermeasure for improving safety. However, there is often a tradeoff between safety and mobility when safety investments are considered. As a result, identifying safety countermeasures that both improve safety and reduce Travel Time Variability (TTV) is a desirable goal for traffic safety engineers. This paper reports on the analysis of the mobility impacts of the SEP by simulating the traffic network with and without the SEP, calibrated to real world conditions. The simulation results show that the SEP decreased the TTV: the risk of unreliable travel was at least 23% higher in the 'without SEP' scenario than in the 'with SEP' scenario. In addition, the total Travel Time Savings (TTS) from the SEP was estimated to be at least '569 vehicle-hours/year.' Consequently, the SEP is an efficient countermeasure not only for reducing crashes but also for improving mobility through TTS and reduced TTV.

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“…Prior reviewers also concluded that, although the quality of evidence was not high, speed cameras and speed detection technologies are effective at reducing traffic crashes and injuries (Pilkington & Kinra, 2005;Wilson, Willis, Hendrikz, & Bellamy, 2006). Recent crash-based studies from the United States have reported positive safety benefits through crash and speed reductions from mobile camera enforcement on 14 urban arterials in Charlotte, NC (Cunningham Hummer, & Moon, 2008), and from fixed camera enforcement on an urban Arizona freeway (Shin, Washington, & van Schalkwyk, 2009). …”

Section: Other Issuesmentioning

confidence: 99%

“…The Shin et al (2009) study examined effects of a fixed camera enforcement program applied to a 6.5-mile urban freeway section through Scottsdale, Arizona. The speed limit on the enforced freeway is 65 mph; the enforcement trigger was set to 76 mph.…”

Section: Other Issuesmentioning

confidence: 99%

Helmets Matter: Kentucky Motorcycle Crash Victims Seen at a Tennessee Trauma Center

Testerman¹,

Prior²,

Wells³

et al. 2018

Southern Medical Journal

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Evaluation of the Scottsdale Loop 101 automated speed enforcement demonstration program

Cited by 69 publications

References 27 publications

Effects of Pay-As-You-Drive vehicle insurance on young drivers’ speed choice: Results of a Dutch field experiment

Effects of Pay-As-You-Drive vehicle insurance on young drivers’ speed choice: Results of a Dutch field experiment

How automated speed enforcement may reduce travel time variability and result in travel time savings: The case study of the loop 101 speed enforcement program in Scottsdale, Arizona

Helmets Matter: Kentucky Motorcycle Crash Victims Seen at a Tennessee Trauma Center

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