| 1. |
- Adell, Emeli, et al.
(författare)
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Actors’ expectations and requests regarding ISA implementation.
- 2003
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Konferensbidrag (refereegranskat)abstract
- The stake holders seem to be pending on each others reaction towards ISA-systems (Intelligent Speed Adaptation). A situation can occur in which the car owners do not invest in the system because the car industry do not believe in it, the car industry waits upon the politicians’ standpoint, and the politicians leer at the public opinion… Decision makers need a good picture of what decisions are needed in order to make the car industry produce the system; to make companies with fleet of vehicles invest in the system; to make purchaser of transport services demand the system; to make the insurance companies reward drivers with the system etc. The manufacturers need straight answers of the standpoint of the decision makers and how big the demand among companies with fleets of vehicles is. Private car drivers and companies with fleets of vehicles need to know what support they can expect from the government or from the insurance companies. The study is based on explorative studies were the different stake holders’ attitudes, interests, needs, expectations are explored and the differences between the stake holders are analysed. The stake holders are categorized into four different groups: – Stake holders keen to improve traffic safety (politicians and insurance companies) – Manufacturer (car industry) – Catalysts (opinion makers) – Users (privet car drivers, companies with fleet of vehicles, car rental companies etc.) The aim of this paper is to describe the hypotheses and methods of the study.
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| 2. |
- Adell, Emeli, et al.
(författare)
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Field trials with ISA in Hungary
- 2004
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Ingår i: [Host publication title missing].
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Konferensbidrag (refereegranskat)abstract
- Field experiments with ISA (Intelligent Speed Adaptation) has been carried out in the city of Debrecen, Hungary. Twenty vehicles were equipped with two kinds of ISA systems: 1) support via an active accelerator pedal and 2) warning via beep signals and flashing red light when exceeding the speed limit. Speed was continually logged in all vehicles and the test drivers were interviewed. The results show that they had a positive attitude towards ISA generally, but they reported some negative changes in workload factors. They liked the warning beep signal more than support via the gas pedal.
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| 3. |
- Adell, Emeli, et al.
(författare)
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Field trials with ISA in Hungary and Spain
- 2004
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Ingår i: [Host publication title missing].
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Konferensbidrag (refereegranskat)abstract
- Within the framework of the European project, PROSPER, field experiments with ISA (Intelligent Speed Adaptation) were carried out in Hungary and Spain. Twenty vehicles in each country were equipped with two kinds of ISA systems: 1) warning via an active accelerator pedal and 2) warning via beep signals and flashing red light when exceeding the speed limit. Both systems are based on a GPS receiver and a digital map with speed limits. Speed was continually logged in all vehicles and the test drivers were interviewed. The effects of the systems will be presented at the congress.
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| 4. |
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| 5. |
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| 6. |
- Draskóczy, Magdolna, et al.
(författare)
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The effects of active accelerator pedal in cars – Results from a large scale trial with intelligent speed adaptation.
- 2002
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Konferensbidrag (refereegranskat)abstract
- Within the framework of the Swedish national trial with Intelligent Speed Adaptation (ISA) in urban areas, the effects of large scale use of “active accelerator” were evaluated. 284 cars were equipped with the system for a period of 5-11 months in the city of Lund. The driving data of all equipped vehicles were logged with regard to time and speed, both before and after activating the system. Driver behaviour were studied with the help of an instrumented vehicle. Possible system effects, such as speeds, interactions with other road-users and driving against red were studied in the field. Possible changes in driver attitudes and acceptance were studied by interviews. The results revealed that test drivers’ compliance with the speed limits increased and practically no negative compensatory effects could be found.
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| 7. |
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| 8. |
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| 9. |
- Hjälmdahl, Magnus, et al.
(författare)
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Preliminary results from A Large Scale Trial with Intelligent Speed Adaptation in Lund, Sweden.
- 2001
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Ingår i: [Host publication title missing].
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Konferensbidrag (refereegranskat)abstract
- Within the framework of the Swedish national trial with Intelligent Speed Adaptation (ISA) in urban areas, 225 cars are equipped with an active gas pedal for a period of 10 months in the city of Lund. In order to evaluate the systems a number of studies are being carried out. The driving data of all equipped vehicles is logged with regard to time and speed, both before and after activating the system. Driver behaviour and workload is studied with the help of an instrumented vehicle. Possible system effects, such as speeds, interactions with other road-users and driving against red are studied in the field. Possible changes in driver attitudes and acceptance are studied by interviews.
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| 10. |
- Hjälmdahl, Magnus, et al.
(författare)
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Speed regulation by in-car active accelerator pedal – Effects on driver behaviour
- 2004
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Ingår i: Transportation Research. Part F: Traffic Psychology and Behaviour. - : Elsevier BV. - 1369-8478. ; 7:2, s. 77-94
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Tidskriftsartikel (refereegranskat)abstract
- The long term effects of driving with an active accelerator pedal (AAP) on driver behaviour was studied by using an in car observation method. The AAP produced a counterforce in the accelerator pedal when the speed limit was reached, it could however be overridden by pressing the accelerator pedal harder. Twenty-eight drivers were studied when driving without the AAP and then when driving with the AAP after they had used the system in their own cars for at least six months. The results showed that the behaviour towards other road users improved, they had a correct yielding behaviour to a higher degree and were more likely to give pedestrians the right of way at zebra crossings when driving with the AAP. It was also found that the headway to the vehicle in front increased slightly with the system. There were also signs of negative behavioural modifications in the form of drivers forgetting to adapt their speed to the speed limit or the prevailing traffic situation when they were not supported by the AAP. These effects, however, were statistically not significant.
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