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- Füssl, Elisabeth, et al.
(författare)
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Methodological development of a specific tool for assessing acceptability of assistive systems of powered two-wheeler-riders
- 2015
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Ingår i: IET Intelligent Transport Systems. - : Institution of Engineering and Technology (IET). - 1751-956X .- 1751-9578. ; 9:1, s. 12-21
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Tidskriftsartikel (refereegranskat)abstract
- Research on the acceptability of assistive systems for improving the safety of powered two-wheelers (PTWs) is a pressing issue. The use of safety-enhancing assistive systems for motorised vehicles, including advanced driver assistance systems and in-vehicle information systems is widespread in many countries. Yet, there is only a limited number of equivalent intelligent transport systems (ITS) for PTWs, namely advanced rider assistance systems and on-bike information systems. This study describes the methodological development of a specific tool for assessing motorcyclists’ acceptability of ITS, as part of the motorcyclists’ profiling questionnaire (MOPROQ). There were three stages of development. First, a literature review was undertaken to assess the current state of the art regarding ITS for PTWs and to determine the most relevant facets of acceptability that should be measured. Second, a series of focus group interviews were conducted to explore riders’ attitudes towards ITS. Finally, the focus group results were used to develop a large-scale survey (MOPROQ), which was administered to an initial sample of over 6000 riders internationally. The designed tool can be used as a basis for the determination of rider acceptability of ITS systems in the future.
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| 2. |
- Füssl, Elisabeth, et al.
(författare)
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Riders acceptance of advanced rider assistance systems
- 2012
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Konferensbidrag (refereegranskat)abstract
- The development of assistive systems and intelligent transport systems (ITS) plays an important role for improving the safety of powered two-wheelers (PTWs). Assistive systems for cars are well known and increasingly popular but for PTW riders the development of Advanced Rider Assistance Systems (ARAS) and On-Bike Information Systems (OBIS) has not progressed far enough yet. Estimates suggest that population-wide deployment of ARAS could reduce crashes by up to 40% (Lenné et al., 2011). Within the 2BESAFE project the factors that affect the acceptance of ARAS and OBIS of PTW riders and the obstacles that may hold PTW riders off from the use of assistive systems have been identified. A literature review, focus group interviews and an online survey have been conducted. The results show that the acceptability of systems depends on their function. The acceptability is higher for systems that were perceived to be more useful in emergencies. Survey respondents raised several concerns regarding the acceptance of assistive systems for PTWs. Respondents of the on-line survey felt that there was too much focus on assistive systems as a means of improving PTW rider safety, and less on the dangers that motorcyclists face actually from the actions of other road users.
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| 5. |
- Bonnier, Gaga, et al.
(författare)
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Kirunas Framtid - Kan man flytta en stad? : restaureringskonst på sin spets
- 2010
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Rapport (populärvet., debatt m.m.)abstract
- Ar 2004 konstaterade gruvbolaget LKAB att en på världsmarknaden ökad efterfrågan på järnmalm innebär att marken ovanför brytningsområdet i Kiruna spricker i takt med att malmen bryts. Detta deformationsområde kommer att omfatta större delen av den gamla staden inklusive kyrkan och stadshuset. Osäkerheten är stor om hur man skall gå till väga och de konkreta frågorna är ännu obesvarade. Diskussionen handlar om vart man skall flytta och den pendlar mellan ytterligheterna att helt avstå från det gamla och bygga helt nytt eller skapa ett nytt område med de gamla husen musealt återuppbyggda i ett landskapssammanhang som så långt möjligt påminner om det gamla. Den avgörande frågan är, menar vi, hur staden och dess invånare kan behålla sin identitet och sitt minne - framtiden för kulturmiljön i vidaste bemärkelse.Omvandlingen och den successiva flytten av Kirunas centrala delar är en av de riktigt stora samhällsbyggnads- och bevarandefrågorna i vår samtid, en samhällsförändring med global räckvidd - restaureringskonst på sin spets.
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| 10. |
- Gårder, Per, et al.
(författare)
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Measuring the safety effect of raised bicycle crossings using a new research methodology
- 1998
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Ingår i: Transportation Research Record. - : SAGE Publications. - 0361-1981 .- 2169-4052. ; 1636, s. 64-70
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Tidskriftsartikel (refereegranskat)abstract
- Before-and-after study methodology was developed and applied to evaluating the effect on bicyclists' safety of raising urban bicycle crossings by 4 to 12 cm. In total, 44 junctions were reconstructed in this way in Gothenburg, Sweden. Four of these were studied in detail. Before the implementations, bicyclists were riding either in the roadway or on separate paths parallel to the roadway. The paths then ended with short ramps or curb cuts at each cross street, and bicyclists used nonelevated, marked bicycle crossings, similar to pedestrian crosswalks but delineated by white painted rectangles rather than zebra stripes. The results show that the paths with raised crossings attracted more than 50 percent more bicyclists and that the safety per bicyclist was improved by approximately 20 percent due to the increase in bicycle flow, and with an additional 10 to 50 percent due to the improved layout. However, the increased bicyclist volume means that the total number of bicycle accidents is expected to increase. Besides accident analysis, the change in risk was estimated using four different methods: surveys of bicyclists and experts, respectively; conflict data; and a quantitative expert model. Using a Bayesian approach for combining the results shows that the most likely effect of raising the bicycle crossing is a risk reduction of around 30 percent, compared with the before situation with a conventional bicycle crossing. Motorists and pedestrians also saw safety benefits from this traffic-calming measure.
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