The safe speeds and also the general speed limits are quite different outside and within built-up areas. If it does not follow from the road design, whether the given scene is within or outside built-up area, drivers are uncertain about their appropriate speed.This paper shows two approaches to assess the degree of uncertainty of the drivers. The first was a questionnaire survey of requested speeds at various road scenes. In the second method, the recognition process of drivers was simulated by image classification software.Output indicators of these methods (standard deviation of speeds and certainty score) can serve as tools to identify road scenes and road elements leading to uncertain and therefore risky situations.
United Nations Economic Commission for Europe: Convention on road signs and signals, done at Vienna on 8 November 1968. Incorporating the amendments to the Convention, which entered into force on 30 November 1995.
Garrick N. W. Speeds and street design results UConn and UCD, Highway design class, University lecture, University of Connecticut, February 2011.
Goldenbeld Ch., van Schagen, I. The credibility of speed limits on 80 km/h rural roads: The effects of road and person(ality) characteristics, Accident Analysis and Prevention, Vol. 39, 2007, pp. 1121–1130.
Schagen I., 'The credibility of speed limits on 80 km/h rural roads: The effects of road and person(ality) characteristics' (2007) 39Accident Analysis and Prevention: 1121-1130.
Schagen I.The credibility of speed limits on 80 km/h rural roads: The effects of road and person(ality) characteristicsAccident Analysis and Prevention20073911211130)| false
Vedaldi A., Fulkerson B., Feat V. L. An open and portable library of computer vision algorithms, Proceedings of the 18th annual ACM international conference on Multimedia, Firenze, Italy, 25–29 October 2010, (Winner of the ACM Open Source Software Competition 2010) pp. 1469–1472.