TY  - JOUR
PY  - 2020//
TI  - Effect of night-time rain on travel speed at two-lane highway without lights
JO  - Transportation research procedia
A1  - Makinde, Oluyemisi
A1  - Ben-Edigbe, Johnnie
SP  - 747
EP  - 755
VL  - 48
IS  - 
N2  - 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.<p />  <p>Language: en</p>
LA  - en
SN  - 2352-1465
UR  - http://dx.doi.org/10.1016/j.trpro.2020.08.076
ID  - ref1
ER  -