@article{ref1,
title="Detectability of pavement markings under stationary and dynamic conditions as a function of retroreflective brightness",
journal="Transportation research record",
year="1995",
author="Jacobs, Gregory F. and Hedblom, Thomas P. and Bradshaw, T. Ian and Hodson, Neil A. and Austin, Robert L.",
volume="1495",
number="",
pages="68-76",
abstract="With the availability of pavement marking systems having varying reflective performance, the brightness a road surface marking must have to provide safe and effective guidance has remained undefined. This work studied minimum reflective brightness needed for a pavement marking to be visible to a driver as a function of distance of the marking from a vehicle. Six pavement marking products having a wide range of retroreflective brightness performance were viewed as isolated center skip lines from stationary vehicles at distances from 30 to 250 m in a dark rural setting. Product detectability for each viewer/marking combination was determined. Also, seven pavement marking products were viewed from moving vehicles with a driver approach speed of 24 kph. Detection distances for each driver/marking combination were determined. Retroreflective brightness of the products as a function of distance was measured at geometries corresponding to the vehicle-driver distances of the experiment. Detectability of pavement markings depends on the viewing conditions. A correlation could be seen between detectability of pavement markings and product brightness and viewing distance. The nature of this correlation was different when the experiment was changed from a stationary viewing to one with a moving vehicle with shorter detectability distances for the same marking in a moving vehicle.<p /><p>Language: en</p>",
language="en",
issn="0361-1981",
doi="",
url="http://dx.doi.org/"
}