vehicle probes as real time atms sources of dynamic o d and travel data m van aerde 1 b hellinga 2 l yu 3 h rakha 4 department civil engineering queen s university kingston canada fax 613 545 2128 abstract the ivhs field operation studies that are being carried out at present have demonstrated communications technology on board electronics user interface in route guidance systems rapidly approaching a state development which while not completely mature could certainly support deployment several types practical lagging considerably behind this is availability adequate to such provided from utcs ftms clearly been shown be deficient terms providing reliable link especially surface streets estimating for entire driver population proposed solution latter traffic problem expected sufficient numbers directly provide when drivers start their trips traverse various links unfortunately view
