Evaluation of in-vehicle dynamic speed assistance in Spain: algorithm and driver behaviour

Jiménez, Felipe; Aparicio, Francisco; Páez, J. M. García

doi:10.1049/iet-its:20070019

Cited by 40 publications

(33 citation statements)

References 2 publications

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“…Notice that the advisory speed taking into account slight severity injuries is very close to the advisory speed proposed with the "zero risk" strategy proposed by [17], [18]. This was expected because slight injury curves are very sharp for low speeds and saturated over 10ms −1 (See Fig.…”

Section: A Degraded Friction In Rainy Weathersupporting

confidence: 60%

“…3) Existing Approach: Existing approaches like [17], [18] focus on stopping before hitting an obstacle on the road. This strategy of handling risk has three major issues.…”

Section: B Integrating Risk 1) Crash Scenariomentioning

confidence: 99%

“…A dichotomic procedure is then used to search for an initial speed in adverse conditions such that total probability of fatal injury during braking is equivalent to the total reference probability of fatal injury. The probability of fatal injury using strategies such as proposed in [17], [18], denoted "zero risk" strategy (star line), is also presented for comparison. Using this method leads to an advisory speed such as stopping distance equals reference stopping distance (64m).…”

Section: ) Equivalent Total Riskmentioning

confidence: 99%

“…Curve Overspeed Warning (COW) systems that can adapt speed in curves if speed limit is not suitable also exist such as [16]. The principles for the implementation of an ISA in adverse conditions have been proposed in [17], [18]. These last two methods are based on the same safety criterion.…”

mentioning

confidence: 99%

“…This information is then fused online and the reference speed is modulated depending on environmental and geometric characteristics of the roadway. Our method is original in that the safe speed is not computed from models (bottom-up approach like [18]) but instead a reference speed practised and practicable in good conditions is modulated (top-down approach). The approach for the safety criterion is new and less constraining by taking into account the potential seriousness of a crash using accidents statistics as compared with the "stopping distance" or "zero risk" strategy as used in [17] and [18].…”

mentioning

confidence: 99%

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Advisory speed for Intelligent Speed Adaptation in adverse conditions

Gallen¹,

Hautiére²,

Glaser³

2010

2010 IEEE Intelligent Vehicles Symposium

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Abstract-In this paper, a novel approach to compute advisory speeds to be used in an adaptive Intelligent Speed Adaptation system (ISA) is proposed. This method is designed to be embedded in the vehicles. It estimates an appropriate speed by fusing in real-time the outputs of ego sensors which detect adverse conditions with roadway characteristics transmitted by distant servers. The method presents two major novelties. First, the 85 th percentile of observed speeds (V85) is estimated along a road, this speed profile is considered as a reference speed practised and practicable in ideal conditions for a lonely vehicle. In adverse conditions, this reference speed is modulated in order to account for lowered friction and lowered visibility distance (top-down approach). Second, this method allows us taking into account the potential seriousness of crashes using a generic scenario of accident. Within this scenario, the difference in speed that should be applied in adverse conditions is estimated so that global injury risk is the same as in ideal conditions.

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Section: A Degraded Friction In Rainy Weathersupporting

confidence: 60%

“…3) Existing Approach: Existing approaches like [17], [18] focus on stopping before hitting an obstacle on the road. This strategy of handling risk has three major issues.…”

Section: B Integrating Risk 1) Crash Scenariomentioning

confidence: 99%

Section: ) Equivalent Total Riskmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Advisory speed for Intelligent Speed Adaptation in adverse conditions

Gallen¹,

Hautiére²,

Glaser³

2010

2010 IEEE Intelligent Vehicles Symposium

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Intelligent Speed Adaptation (ISA)

Blum

Eskandarian

Arhin

2012

Handbook of Intelligent Vehicles

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During the period 1999-2002 the Swedish National Road Administration conducted a comprehensive road information project which included a large-scale trial involving Intelligent Speed Adaptation in urban areas. Several thousand vehicles have been equipped with voluntary, supportive and informative systems to help keep drivers from exceeding the speed limit. The systems were tested in Borlänge, Lidköping, Lund and Umeå, where the local authorities were responsible for running the trials in their respective municipalities. Over the three years of the project, the Swedish National Road Administration provided SEK 75 million in funding, and was also responsible for the overall co-ordination of the technology involved, as well as for evaluating the comparative advantages and disadvantages of the various systems.1999 saw the planning of how the trial would be implemented and evaluated and in 2000 the systems started being installed in the vehicles. Most of the actual field trials were carried out in 2001. All the data from the trials were compiled and analysed during 2002. At the same time numerous experiences for discussion of the continued introduction have been collected.The submitted report documents the background, implementation and the results of the comparative evaluation of the individual systems, which were made centrally by the Swedish National Road Administration. The report is designed to provide information and guidance for the continued consideration of a possible introduction of a speed adaptation system on a large-scale.We would like to thank all the participating municipalities, automotive industry and companies as well as all private persons and haulage companies that contributed with vehicles, answering questionnaires and good development ideas.

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Review of Advanced Driver Assistance Systems and Their Applications for Collision Avoidance in Urban Driving Scenario

Narkhede

Chopade

2021

Lecture Notes in Networks and Systems

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Evaluation of in-vehicle dynamic speed assistance in Spain: algorithm and driver behaviour

Cited by 40 publications

References 2 publications

Advisory speed for Intelligent Speed Adaptation in adverse conditions

Advisory speed for Intelligent Speed Adaptation in adverse conditions

Intelligent Speed Adaptation (ISA)

Review of Advanced Driver Assistance Systems and Their Applications for Collision Avoidance in Urban Driving Scenario

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