@article{ref1,
title="Recording and analysis of traffic engineering measures",
journal="Highway research record",
year="1972",
author="Bissell, Howard H. and Courage, Kenneth G.",
volume="398",
number="",
pages="2-11",
abstract="A traffic survey system has been developed that collects data on a digital tape for off-line anaylysis by a general-purpose digital computer. Examples of two methods that have actually been conducted in the field are presented. One example involves the use of the recorder in a moving vehicle to collect data on time, distance, and approaching vehicles passed on a freeway facility. These data are used to develop speed, flow, and density contours; delay contours; speed and delay peak-hour profiles; isochronal travel time plots; close following patterns; and bottleneck flow density relationships. The second example involves stationing the recorder at the side of the roadway and collecting speed, volume, and headway data through the use of road-tube detectors. These data are used to compute speeding, tailgating, and turbulence indexes. Other traffic engineering study applications are being developed. <br><br>KEYWORDS: Car following; Contours; Digital computers; Graphics; Headways; Information processing; Magnetic tapes; Peak hour traffic; Tape recorders; Traffic delays; Traffic flow; Traffic speed; Traffic volume; Turbulence; Close following<p /> <p>Language: en</p>",
language="en",
issn="0073-2206",
doi="",
url="http://dx.doi.org/"
}