Impact of Dynamic Message Signs on Speeds Observed on a Rural Interstate

Autor:	Yanfei Sui, Rhonda Young
Rok vydání:	2014
Předmět:	Adverse weather Meteorology Linear regression Environmental science Traffic speed Transportation Rural area Winter season Intelligent transportation system Simulation Civil and Structural Engineering
Zdroj:	Journal of Transportation Engineering. 140
ISSN:	1943-5436 0733-947X
Popis:	Dynamic message signs (DMSs) are a component of intelligent transportation systems (ITSs) used to convey real-time travel information to motorists, enabling them to make better decisions in response to real-time roadway conditions such as congestion, crashes, and adverse weather. The purpose of this paper is to analyze the existing DMS system implemented by the Wyoming Department of Transportation (WYDOT) along a rural segment of Interstate 80 in southeastern Wyoming between the cities of Laramie and Cheyenne. The research uses speed, weather, and DMS message data collected from the winter season of 2009 to 2010 along the corridor to determine how driver speed behavior is affected by DMS signs. A linear regression model utilizing four different weather severity categories was estimated and the results indicate that the DMS message signs are effective at reducing drivers’ speeds along rural interstate corridors from 8 km/h to 32 km/h (5 mi/h to 20 mi/h) above the speed reductions that can be accounted for by weather conditions alone.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7efab98f41851b83ff5361ff53e1786c https://doi.org/10.1061/(asce)te.1943-5436.0000664 Zobrazit plný text záznamu