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Physical and digital infrastructure for optimised ADAS performance

Physical and digital infrastructure for optimised ADAS performance

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Our mobility is facing a new period of major changes, with traffic safety improvements remaining an important objective for governments as well as road maintenance and management authorities. A lot has been achieved in recent decades to improve infrastructure safety and influence road user behaviour. The automotive industry has also made huge advancements in vehicle safety.  New  vehicles  are  increasingly  equipped  with  systems  that  assist  human  drivers  in  driving,  including  maintaining  course,  speed  and  distance.  These  driver  assistance  systems  -  Advanced  Driver  Assistance  Systems  (ADAS)  -  have  a  positive  impact on traffic safety and make driving more comfortable and sustainable, if used correctly and safely and if they function well.

Various ADAS will be mandatory in new passenger car models from 2022 and in all new cars from 2024.Realising  the  positive  impact  of  ADAS  is  a  multi-disciplinary,  collective  task  for  automotive  parties,  legislators  and  road  maintenance and management authorities. It is important for road maintenance and management authorities to know how they can make infrastructure future-proof in view of the rapid rise in smart vehicles and developments relating to mobility data digitisation, as well as how they can manage newly introduced risks. Which options are there from the current and future infrastructure to support the safe and correct performance of smart vehicles and which steps can be taken to work towards this and to improve traffic safety?

Royal HaskoningDHV was commissioned by the National Traffic Management Board (LVMB), in which the Netherlands’ largest road maintenance and management authorities collaborate at national, regional and municipal level, to research the need for action and changes relating to guidelines, infrastructure and cooperation between road authorities, the car industry and other important stakeholders. The survey covered two main questions:

Research question 1: ‘To what extent do the current speed limit sign guidelines need to be adjusted to ensure that ADAS can detect and read these?’

This question mainly relates to understanding whether the location, visibility and interpretability of various types of speed limit signs need to change to improve detection by traffic sign recognition systems and the performance of Intelligent Speed Assistance (ISA). The basic principle is that traffic signs should always remain clear for human road users.

Research question 2: ‘How can we use the physical and digital infrastructure in a uniform way to optimise ADAS performance?’

More  insight  is  needed  into  infrastructure  characteristics  that  can  impact  safe  and  correct  ADAS  performance,  including  physical (road design and layout) and digital infrastructure (for example focused on communications and positioning/maps). The  objective  is  to  identify  measures  to  support  the  safe  use  of  ADAS,  while  guaranteeing  and,  where  possible,  improving  traffic safety for drivers who drive without assistance.

You can read the full report here.

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