Alan Stevens

Universiti Teknologi MARA

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Valery Ochkov

Moscow Power Engineering Institute

Anton Tikhonov

St Petersburg University

Nick Reed

Highways England

Magali Gouy

Transport Research Laboratory (United Kingdom)

George Yannis

National Technical University of Athens

Cyriel Diels

Royal College of Art

Peter Vermaat

Transport Research Laboratory (United Kingdom)

J R Spindlow

Transport Research Laboratory (United Kingdom)

J M Hopkin

Transport Research Laboratory (United Kingdom)

Gary Burnett

University of Nottingham

Cooperative Institutions

Transport Research Laboratory (United Kingdom)

Universiti Teknologi MARA

University of Surrey

Coventry University

National Technical University of Athens

Massachusetts Institute of Technology

University of Nottingham

University of Warwick

Jaguar Land Rover (United Kingdom)

Coventry (United Kingdom)

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Radiation Shielding

CRC Press eBooks (2022)

Alan Stevens

10.1201/9781003295235-7

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Investigation of safety impact of driver assistance systems through traffic simulation modelling

George Yannis Alan Stevens John Golias

A methodology has been developed for the use of microscopic traffic simulation modelling for the investigation of road safety impact from the introduction of two advanced driver assistance systems (ADAS). The simulations modelled key parameters (headway, speed) for several scenarios of different traffic levels and assumed penetration levels of Adaptive Cruise Control and Intelligent Speed Adaptation systems. Results from the simulations, studied in the context of existing relationships between the number of road accidents and traffic parameters, allowed the estimation of the related traffic safety impact. This impact was investigated in relation to the corresponding changes in average speed, in headways, in time-to-collision and in lane changing. Even though an overall straightforward answer to the safety impact of ADAS systems was not possible due to the complexity of the traffic safety phenomenon, several positive effects on safety were identified.

Headway

Traffic simulation

Road traffic safety

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Benefits and deployment opportunities for vehicle/roadside cooperative ITS

Alan Stevens J M Hopkin

Strategic studies clearly show that new technology, and especially Information and Communication Technology (ICT), has a key role in meeting transport objectives. Within this broad field, many commentators point to the establishment of cooperative systems - also called Cooperative Vehicle Highway Systems, CVHS, or Cooperative Intelligent Transport Systems, C-ITS - as an enabler of new “connected services” providing safety, congestion and environmental benefits. Nevertheless, for a road authority, the route to deployment is far from clear and this paper discusses the technical and organisational aspects that now need critical attention in order for cooperative systems to achieve successful deployment. (6 pages)

Enabling

10.1049/cp.2012.1535

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Citations (10)

Practical issues in the application of occlusion to measure visual demands imposed on drivers by in-vehicle tasks

Ergonomics (2008)

N. Brook-Carter Alan Stevens Nick Reed S J Thompson

Occlusion is a practical technique to measure the visual demand imposed by in-vehicle tasks and to assess whether a task can be resumed having been interrupted. This study describes a number of important factors and variables that need to be controlled to ensure reliability of results. Training of participants on in-vehicle tasks is found to help consistency and five training sessions are required for complex tasks. No significant differences in training with and without occlusion goggles are reported. The required sample size is dependent on the variability of the task; for those investigated an appropriate sample size is found to be 14. For in-vehicle systems that exhibit a delay in response to the user, consistency is improved when these delays are excluded from timing measurements. In terms of calculating the occlusion parameter R, the within-participant basis is most consistent by taking the ratio of the respective median total shutter open time and total task times across trial repetitions completed by one participant on each task under evaluation and, for the purposes of identifying interface designs that exhibit poor resumability, the 85th percentile value is identified as most suitable. Findings from the study are discussed in terms of future application of the occlusion technique to assess in-vehicle information systems (IVIS).

Sample (material)

10.1080/00140130701768471

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Citations (7)

Thermal Radiation

CRC Press eBooks (2022)

Alan Stevens

10.1201/9781003295235-4

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Citations (0)

Bending Beams

CRC Press eBooks (2022)

Alan Stevens

10.1201/9781003295235-5

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Benefit and feasibility of a range of new technologies and unregulated measures in the field of vehicle occupant safety and protection of vulnerable road users

David Hynd Michael McCarthy Jolyon Carroll Matthias Seidl Mervyn Edwards

The primary objective of this project was to provide advice on the likely benefit and feasibility of a range of possible measures to improve vehicle safety. The study involved stakeholders at several stages to ensure that relevant measures were being considered, and that manufacturers, suppliers and other organisations had an opportunity to provide information on the feasibility and costs of state-of-the-art technologies. The outputs are indicative cost-benefits provided in order to differentiate those measures that are very likely, moderately likely or very unlikely to provide a benefit consistent with the cost of implementation. This information will enable prioritisation of possible future legislation or amendments thereto relevant to vehicle safety and to the relevant EU type-approval requirements. This study also aimed to provide advice on the necessity and feasibility of including the complimentary upper legform to bonnet leading edge and adult headform to windscreen tests in pedestrian safety legislation, until recently carried out by vehicle manufacturers only with a view to monitor the situation in the field.

Vehicle safety

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Citations (8)

Electronic vehicle identification for road traffic information and enforcement

Alan Stevens B G Stoneman

Electronic Vehicle Identification (EVI) is a future means of uniquely identifying and communicating electronically with road vehicles. The use of EVI has the potential to greatly improve the identification of vehicles over current methods and uses a wireless communication link to read data held in an electronic format within a vehicle. The next decade will undoubtedly see an increase in the application of electronic systems to the road network in order to improve network efficiency and road safety. The application of EVI could for example, provide journey time data to traffic control systems, or a means for enforcing traffic regulations. EVI also provides the opportunity for introducing a wide range of commercial and driver related services that benefit Users. This paper describes the work undertaken for the DTLR as the first steps in addressing the EVI concept and public policy needs. The paper identifies some of the problems with optical vehicle identification techniques currently in use, describes EVI with potential applications and also discusses some of the organisational and societal issues that will need to be addressed.

Identification

Vehicle safety

10.1049/cp:20020198

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Citations (4)

Book Review: Driver Acceptance of New Technology - Theory, Measurement and Optimisation

International Journal of Business and Technology Management (2023)

Mohammad Ananda Sharifah Nurafizah Syed Annuar Ainul Azreen Adam Arshad Ayub

Book Title: Driver Acceptance of New Technology - Theory, Measurement and Optimisation Authors: Michael A. Regan, Tim Horberry and Alan Stevens Publisher: Ashgate Publishing Limited Year: 2014 ISBN: 9781409439844 (hbk), 9781409439851 (ebk-pdf), 9781472405852 (ebk-epub)

10.55057/ijbtm.2023.5.1.2

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Rectangle Mappings on the Complex Plane

Chapman and Hall/CRC eBooks (2022)

Valery Ochkov Alan Stevens Anton Tikhonov

Rectangle

10.1201/9781003228356-9

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