Towards a safer fitness to drive and driving ability assessment procedure with joystick

Juan F. Dols

This paper presents a new fitness to drive and driving ability assessment procedure developed by theUniversity Polytechnic of Valencia (Spain) for evaluating severely drivers with impairments whocannot drive a motor vehicle with standard car control adaptations. The objective of this newassessment approach was based on performing a series of practical tests divided into two main phases.

The first phase of the assessment utilize a simulator that allows a safe measurement of all thenecessary parameters needed to determine the residual capacities (e.g. forces, torques, displacements,reaction time, etc.) of the driver that can be used for driving a joystick controlled vehicle. Furthermore,driving maneuvers are performed in a controlled way to determine required movement coordination,response times, etc. The SERCO simulator was designed and developed for this purpose as a modular,portable and adaptive experimental tool that allows assessing driver candidates with or without leavingtheir wheelchair using all types of technical aids including joystick controls. The result of this firstassessment phase determines the more appropriate joystick device and space location as a function ofthe driver needs.

The second phase of the assessment procedure includes a series of driving ability tests on a closedcircuit. From the information obtained during the assessment in the simulator, the most suitable typeof joystick device is determined for driving safely and the restraint system needed both by the user andthe wheelchair. At this stage it will also be possible to assess the accessibility requirements needed forthe adapted vehicle. Moreover, at this stage a battery of practical tests is performed in a closed circuitwith the vehicle in motion, which follows the recommendations and requirements defined by the EUcurrent legislation for obtaining a driving license (EC, 2006), reproducing vehicle maneuvers as closeto reality as possible.

As a result of the described procedure it is possible to ensure that the driver is able to fulfill theminimum requirements for obtaining a driving license. Furthermore, it is possible to determinerequired driving restrictions or limitations, corrective conditions and coding of adaptations accordingto EU legislation.



Cost Benefit Analysis (CBA) workshop in Stockholm

An open seminar and workshop in Stockholm will be held on 25-26 April 2018. The workshop deals with the use of CBA as a basis for decision-making in the public sector. The workshop is organized by, among others, Professor Jan-Eric Nilsson, VTI.



Ulf Sandberg has been presented with the TTI Lifetime Achievement Award 2018

VTI’s Senior Research Leader Ulf Sandberg has been presented with the TTI Lifetime Achievement Award 2018 for his work on research into tyres and road surface.


Steps need to be taken to increase traffic safety of automated cars

Several steps are necessary to ensure that automated and connected cars will lead to increased traffic safety – everything from ensuring that technology takes vulnerable road users into account, to new forms of driver training. This has emerged in a position...


FALCON examines challenges in the transport sector

VTI is one of several important partners in the major FALCON project*, whose purpose is to create knowledge and insight regarding the transport sector. In an initial subproject, VTI has produced a manual on transport, logistics and multimodality.


VTI joined research cooperation in China

In December 2017 VTI became a member of China-Sweden Research Centre for Traffic Safety (CTS).


Swedish German research collaboration on Electric Road Systems

The project “Swedish-German research collaboration on Electric Road Systems” (CollERS) has now officially started. The goal of the project is to increase the common knowledge around Electric Road Systems by cooperation between Germany and Sweden and to...


Electric Road Systems Conference 2018

After a successful first conference in June 2017, the Swedish research and innovation platform for electric roads is arranging the second dedicated International Conference on Electric Road Systems (ERS) June 13th and 14th 2018.