COMPUTATIONAL RESEARCH PROGRESS IN APPLIED SCIENCE & ENGINEERING (CRPASE) CRPASE: TRANSACTIONS OF CIVIL AND ENVIRONMENTAL ENGINEERING Journal homepage: http://www.crpase.com CRPASE: Transactions of Civil and Environmental Engineering, Vol. 06(03), 186-190, September 2020 ISSN 2423-4591 Research Article The Effect of Rain on Pedestrians Crossing Speed Mojtaba Bagheri Movahhed 1 , Jalal Ayoubinejad 2 , Farid Najjari Asl 3 , Mahdi Feizbahr 4 1 Payame Noor University of Kish International Center, Kish, Iran 2 Department of Civil Engineering, Payame Noor University, Iran 3 School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran 4 School of Civil Engineering, Engineering Campus, University Sains Malaysia, Nibong Tebal , Penang, Malaysia Keywords Abstract Pedestrian, Crossing Speed, Signalized Intersection, Rain Condition. The pedestrian crossing speed in the signalized intersections is one of the most important parameters in the designing intersections and also is essential information in controlling the amount of delay and traffic. The present study aims to measure and statistically analyze the pedestrian crossing speed according to the weather conditions, which is either normal or rainy. In order to do this, the crossing speed of 4381 pedestrians has been gathered through the photography of two signalized intersections in Rasht city. Furthermore, these findings have been analyzed through the Independent Sample T-Test. The results show that, with a 95 per cent confidence, in both gender groups of men and women, the difference in the pedestrian speed according to the weather conditions of either normal or rainy is statistically meaningful and the pedestrian crossing speed was significantly more in the times of rain than in normal weather conditions. Meanwhile, in Rain Condition s, the 15 th percentile crossing speeds for men and women increase 3.0 per cent and 21.5 per cent according to 15 th percentile speeds in the normal weather conditions respectively. Therefore, it is suggested that the pedestrian speed in the normal weather conditions be regarded as the base for designing, so that the 15 th percentile crossing speeds and the average of all samples in the Rain Condition are 1.05 and 1.24 meter per second successively. 1. Introduction Gathering and analyzing of data are two-parameter in design and fulfill of civil engineering projects and this issue is true for all fields that related to civil engineering. So that researchers follow to up to date themselves about science and novelties [1,2]. All efforts should be led to develop the infrastructure of cities and highways. Therefore, the engineers investigated the effect of all parameters such as: groundwaters, earthquake, coastal near to roads on the infrastructure subsidence [3,4]. Also, they predicted the strength of the soil by the effects of future loading and try to revise their characteristics [5-7]. Finally, pavements and sidewalks are built as the latest layer to reduce the negative effects of rain [8-11] and even the engineers improve the specification of asphalt mixtures with additive materials to  Corresponding Author: Mojtaba Bagheri Movahhed E-mail address: mbagherimovahhed@gmail.com Received: 10 June 2020; Revised: 30 June 2020; Accepted: 12 July 2020 Please cite this article as: M. Bagheri Movahhed, J. Ayoubinejad, F. Najjari Asl, M. Feizbahr, The Effect of Rain on Pedestrians Crossing Speed, Computational Research Progress in Applied Science & Engineering, CRPASE: Transactions of Civil and Environmental Engineering 6 (2020) 186–190. resistant against the traffic loading [12,13]. Traffic engineers have played an important role in the safety of Transportation [14] and increase the saturation flow rate [15] through geometry designs [16] and optimizing the traffic lights [17]. The signalized intersections in one of the important facilities that can reduce delays in city networks. The optimum of time phasing [18], headways of vehicles [19] and traffic volume can improve performance of intersections [20], especially level of services that the pedestrians are the important users of these facilities [21]. The crossing speed of pedestrians on intersections is one of the traffic engineering parameters so that the level of their exposure to traffic flow depends on the crossing speed [22]. Therefore, the correct design of intersection facilities requires a design based on the safe crossing speed of pedestrians [23]. Individual