| 1. |
- Abdul Manan, Marizwan, et al.
(författare)
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Development of a safety performance function for motorcycle accident fatalities on Malaysian primary roads
- 2013
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Ingår i: Safety Science. - : Elsevier BV. - 0925-7535. ; 60, s. 13-20
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Tidskriftsartikel (refereegranskat)abstract
- This study uses a generalized linear model approach, i.e. negative binomial regression, to develop a predictive model for motorcycle fatal accidents on Malaysian primary roads. For the modeling process, a huge data inventory has been carried out, integrating the road geometry features, fatal accident records and traffic censuses from 3 selected states for the past 3-year period. The results show that motorcycle fatalities per kilometer on primary roads are statistically significantly affected by the average daily number of motorcycles and the number of access points per kilometer. The model established for this study can also be regarded as the first motorcycle safety performance function in Malaysia and probably in Asia. Also noted in this study is the need to establish a proper and systematic road geometry and traffic census inventory in order to develop better accident prediction models for Malaysia in the future. (C) 2013 Elsevier Ltd. All rights reserved.
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| 2. |
- Abdul Manan, Marizwan, et al.
(författare)
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Motorcycle fatalities in Malaysia
- 2012
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Ingår i: IATSS Research. - : Elsevier BV. - 0386-1112. ; 36:1, s. 30-39
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Tidskriftsartikel (refereegranskat)abstract
- Malaysia has the highest road fatality risk (per 100,000 population) among the ASEAN countries and more than 50% of the road accident fatalities involve motorcyclists. This study has collected and analysed data from the police, government authorities, and national and international research institutes. Only fatality data are used due to the severe underreporting of severe injuries (up to 600%) and slight injuries (up to 1400%). The analysis reveals that the highest numbers of motorcycle fatalities occur in rural locations (61%), on primary roads (62%) and on straight road sections (66%). The majority are riders (89%), 16 to 20 years old (22.5%), and 90% of the motorcycles are privately owned. Of those involved in fatal accidents, 75% of the motorcyclists wear helmets, and 35% do not have proper licences. The highest number of fatalities by type of collision is ‘angular or side’ (27.5%). Although fatal motorcyclist crashes mostly involve ‘passenger cars’ (28%), motorcyclists are responsible for 50% of the collisions either by crashing singly (25%) or with other motorcyclists (25%). While male motorcyclists predominate (94% of fatalities), female motorcyclists aged 31 to 70, possessing ‘no licence’, not wearing helmets and travelling during the day, account for a higher percentage than male motorcyclists. Malaysia must acquire more motorcycle exposure data and establish an injury recording system and database based on hospital-records. To reduce motorcycle fatalities, it first has to understand why young male motorcyclists are prone to fatal crashes in the evenings and on weekends on rural primary roads, especially on straight road sections.
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| 3. |
- Abdul Manan, Marizwan, et al.
(författare)
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Motorcyclists’ road safety related behavior along primary roads in Malaysia – a case study
- 2014
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Ingår i: ; , s. 1-11
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Konferensbidrag (refereegranskat)abstract
- Majority of Malaysian motorcycle fatalities have occurred along straight road sections, which are mostly two-lane undivided roads with several small junctions or access points. In order to gain more insight into the actual road traffic situation and the course of events on these sites because, an observational and traffic conflict study, focusing on motorcyclists, was conducted by the author between June and August 2012 on straight road sections that has access points along primary roads in Malaysia. Our speed analysis showed that the majority of the motorcyclists traveled below the speed limit and had a lower speed when approaching the access point, especially when road users were on it. However, when the primary road traffic volume was high, they maintained higher speeds compared to other vehicles. The percentage of motorcyclists that did not slow down while approaching the access point was higher on the nearside to the access point approach, especially when they were travelling near the shoulder, and when there is a vehicle waiting on the approach of the access point. Our conflict study has shown that motorcyclists entering from the access point are involved in serious traffic conflicts with mainly motorcycles and heavy vehicles, to about the same extent as other vehicles entering the primary road.
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| 4. |
- Adell, Emeli, et al.
(författare)
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How Is Acceptance Measured? : Overview of Measurement Issues, Methods and Tools
- 2014
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Ingår i: Driver Acceptance of New Technology. - Farnham, Surrey, England : Ashgate. - 9781409439844 ; , s. 74-88
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Bokkapitel (refereegranskat)abstract
- This chapter describes how acceptance has been measured and identifies various measurement categories. The relationship between these measurement methods and the different definitions of acceptance appearing in the literature is described and the lack of correspondence between definition and measurement is highlighted. The chapter illustrates the different outcomes of acceptance measurements depending on choice of assessment method and gives some guidance that could be used depending on the purpose of the assessment.
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| 5. |
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| 6. |
- Adell, Emeli, et al.
(författare)
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Modelling Acceptance of Driver Assistance Systems : Application of the Unified Theory of Acceptance and Use of Technology
- 2014
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Ingår i: Driver Acceptance of new technology. - Farnham, Surrey, England : Ashgate. - 9781409439844 ; , s. 23-34
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Bokkapitel (refereegranskat)abstract
- This chapter provides a brief overview of acceptance models used within the area of information technology. One particular model, the Unified Theory of Acceptance and Use of Technology (UTAUT), is then discussed, and a study is reported in which the model was used to assess driver acceptance of a particular driver assistance system. The key findings of that study are reported, and suggestions are made for refining UTAUT to make it more suitable for assessing acceptance of driver assistance systems.
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| 7. |
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| 8. |
- Adell, Emeli, et al.
(författare)
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The Definition of Acceptance and Acceptability
- 2014
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Ingår i: Driver Acceptance of New Technology. - Farnham, Surrey, England : Ashgate. - 9781409439844 ; , s. 11-21
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Bokkapitel (refereegranskat)abstract
- Despite the recognised importance of the concept of acceptance, how and why new technologies are actually accepted by drivers is not well understood. While many studies claim to have measured acceptance, few have explicitly defined what it is. This chapter points out the importance of defining acceptance and categorises definitions that have been used according to their “essence”. Distinctions between different types of acceptance as well as between acceptance and acceptability are also described. A proposal for a common definition of acceptance is then presented and discussed.
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| 9. |
- Adell, Emeli, et al.
(författare)
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The effects of a driver assistance system for safe speed and safe distance - A real-life field study
- 2011
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Ingår i: Transportation Research. Part C: Emerging Technologies. - : Elsevier BV. - 0968-090X. ; 19:1, s. 145-155
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Tidskriftsartikel (refereegranskat)abstract
- The effects of a driver assistance system for keeping safe speed and safe distance (referred to as SASPENCE) on driver behaviour, reactions and acceptance were evaluated in a test carried out in 2006. Twenty test drivers, recruited by ads, drove two times (once with the system off and once with the system on) in real traffic conditions along a 50 km long test route containing urban and rural roads and motorway sections outside Turin, Italy. Driving data was logged and the test drivers were observed by means of an in-car observation method, in this case by two observers riding along in the car with the driver. Driver opinions were collected through questionnaires. The findings show positive effects of the system in terms of fewer alarm situations, shorter alarm lengths, shorter reaction times, increased headway and better interactions with vulnerable road users at intersections. On the negative side, driver performance worsened slightly, the number of centre line crossings increased, there was worse facilitating behaviour with regard to other drivers and harder braking at traffic lights. No major effect on speed behaviour of the driver, lane choice, lane keeping, lane change, overtaking, red running, use of turning indicator and workload was found. (C) 2010 Elsevier Ltd. All rights reserved.
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| 10. |
- Almqvist, Sverker, et al.
(författare)
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Säkrare fordon genom integrerade säkerhetssystem - en litteraturstudie
- 2010
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Föreliggande litteraturundersökning om integrerade säkerhetssystem i fordon visar att system som funnits ha en positiv trafiksäkerhetseffekt är: Adaptiv farthållare, Alkolås, Automatisk lagring av färddata (svarta lådan), Antisladdsystem, Bältespåminnare, Däcklufttryckskontroll, e-Call, Hastighetsanpassare (ISA), Kollisionsvarningssystem och Körfältsstöd. System som kan ge både positiva och negativa traffiksäkerhetseffekter är ABS, Trötthetsvarnare, Adaptiva strålkastare och Mörkerkörningsassistent. System för vilka inga kända utvärderingar med avseende på trafiksäkerhet påträffats: Automatisk fordonsidentifikation, Bromsstöd, Bältessträckare, Dödvinkelassistent, Elektroniskt körkort, Parkeringsstöd, Regnsensor, Start i motlutassistent, Väderinformation.
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