@article{ref1,
title="A modification to Kruithof's double-factor method",
journal="Transportation research part B: methodological",
year="1980",
author="Visick, George",
volume="14",
number="4",
pages="307-318",
abstract="A modification of Kruithof's double-factor algorithm (sometimes called the Furness iterative method) that takes into account zones which lie outside the boundary of a traffic network is examined analytically. Basically the revised algorithm allows certain rows and columns of the base traffic matrix to be only proportionally scaled while the remaining rows and columns which have pre-specified row and column totals are scaled in the usual biproportional way. This paper shows that all the properties (such as uniqueness, reversibility, existence) which hold for the traditional biproportional transformation also hold for the modified transformation under certain positivity assumptions.<p /><p>Language: en</p>",
language="en",
issn="0191-2615",
doi="10.1016/0191-2615(80)90011-9",
url="http://dx.doi.org/10.1016/0191-2615(80)90011-9"
}