@article{ref1,
title="Pedestrian-Related Goals and Innovations, Step by Step",
journal="Transportation quarterly",
year="1990",
author="Schweig, KH",
volume="44",
number="4",
pages="595-606",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0278-9434",
doi="",
url="http://dx.doi.org/"
}