TY - JOUR PY - 1983// TI - Reversal point in the perspective road picture JO - Australian road research A1 - ten Brummelaar, T SP - 123 EP - 134 VL - 13 IS - 2 N2 - Using perspective pictures of roads - drawn by the Tangent Method - the reversal point curve on road curves is defined. The position of the reversal point curve is indicated and it is shown that the reversal points on the road edge and shoulder lines do not lie at the same distance below the horizon. An optical illusion could result, which is further influenced by the existence of walls in cuttings. The steep wall on the inside of curves tends to enforce the impression of adverse crossfall. The roundness or pointiness of the reversal curve is discussed as a clue to the curvature of the curve approached by the driver. The form of the reversal curve is not dependent on the total deflection of the road curve, but on the radius of the curve and the road width.

LA - SN - 0005-0164 UR - http://dx.doi.org/ ID - ref1 ER -