Abstract
Speed is one of the parameters used for performance measure of traffic. It is affected by weather changes. This paper investigates the effect of night-time rainfall on travel speed on two-lane highway without lights. Traffic and rainfall data were collected at four different sites in Nigeria for a period of eight weeks. The data were sorted into dry and rainy night-time, filtered and analysed. The use of flow-density relationship gives a better understanding of travel speed within traffic stream operation. The result of the study shows significant change in travel speed between the dry and rainy night-time conditions. The average travel speed reduction was observed to be 3.4%, 6.8% and 10.2% for light, moderate and heavy rain at night-time respectively. This confirms that travel speed reduces under night-time rainfall irrespective of its intensity.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
