TY - GEN
T1 - Roundabout perception
T2 - 16th International Conference on Urban Transport and the Environment, Urban Transport 2010
AU - Pratelli, A.
AU - Souleyrette, R. R.
AU - Harding, C.
PY - 2010
Y1 - 2010
N2 - This paper deals with roundabout visibility and perception design requirements, including available standards and guidelines in the US and Europe for warning signs. To provide for the highest levels of safety, visual perception of junctions is important even where advance warning signs are provided, to reinforce driver knowledge and confidence in their actions. For roundabouts, three different types of central island development are recently suggested to affect their visual perception, and the related classification defines the reduced, the compressed and the streamlined, or slender, central island development. The paper proposes new methodologies to test this perceptibility of various roundabout designs and developments. Two research strategies based on the specific roundabout visual intrusion defined by the solid angle are outlined: on-site stand-by/2D and virtual video/3D. Finally, some preliminary results are discussed in view of selecting original and proper standards. Moreover, future research is suggested for extending the methodology to more comprehensive application.
AB - This paper deals with roundabout visibility and perception design requirements, including available standards and guidelines in the US and Europe for warning signs. To provide for the highest levels of safety, visual perception of junctions is important even where advance warning signs are provided, to reinforce driver knowledge and confidence in their actions. For roundabouts, three different types of central island development are recently suggested to affect their visual perception, and the related classification defines the reduced, the compressed and the streamlined, or slender, central island development. The paper proposes new methodologies to test this perceptibility of various roundabout designs and developments. Two research strategies based on the specific roundabout visual intrusion defined by the solid angle are outlined: on-site stand-by/2D and virtual video/3D. Finally, some preliminary results are discussed in view of selecting original and proper standards. Moreover, future research is suggested for extending the methodology to more comprehensive application.
KW - Central island development
KW - Driver visual perception
KW - Roundabout design and safety
KW - Roundabout perceptibility
KW - Solid angle
KW - Visual intrusion
UR - http://www.scopus.com/inward/record.url?scp=77958198714&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77958198714&partnerID=8YFLogxK
U2 - 10.2495/UT100071
DO - 10.2495/UT100071
M3 - Conference contribution
AN - SCOPUS:77958198714
SN - 9781845644567
T3 - WIT Transactions on the Built Environment
SP - 71
EP - 82
BT - Urban Transport XVI
Y2 - 5 May 2010 through 7 May 2010
ER -