@article{ref1,
title="Raising the speed limit above 100km/h on Tohoku Expressway and changes in vehicle running speed",
journal="Traffic sciences",
year="2023",
author="Yano, Nobuhiro and Mori, Kenji and Yokozeki, Toshiya",
volume="53",
number="1",
pages="58-66",
abstract="This study examined changes in vehicle running speeds before and after the speed limit was raised above 100 km/h on the Tohoku Expressway during 2016-2020. During the period, the speed limit was increased by 20 km/h, but increases in mean speeds were approximately 25% of the speed limit increase. Some drivers increased their speed in response to the raised speed limit, but others did not. 'Spillover effects' were observed: vehicle speeds sometimes increased in areas where the speed limit had not changed. <br><br>FINDINGS indicate the necessity of continual enforcement activities and countermeasures against excessive speeding.<p /> <p>Language: ja</p>",
language="ja",
issn="0288-1985",
doi="10.34398/kokaken.53.1_58",
url="http://dx.doi.org/10.34398/kokaken.53.1_58"
}