@article{ref1,
title="Capacity of traffic signals and traffic signal timing",
journal="Highway Research Board bulletin",
year="1960",
author="Bellis, Wesley R.",
volume="271",
number="",
pages="45-67",
abstract="For a busy street charts have been developed which show: (1) probabilities for the number of vehicles per hour, and (2) capacity of traffic signals and signal timing for (1) passenger cars at 45 to 55 mph, 35 to 45 mph, 25 to 35 mph, and 15 to 25 mph, (2) trucks at 45 to 55 mph, and (3) combined speeds and vehicle types.<p />",
language="",
issn="0073-2206",
doi="",
url="http://dx.doi.org/"
}