EVALUATION OF SPEED BUMPS AT OSASOGIE COMMUNITY OF EGOR LOCAL GOVERNMENT AREA, BENIN CITY, WITH THE USE OF GEOSPATIAL TECHNIQUES

This research work, evaluated the speed bumps in the Osasogie Community with the use of geospatial techniques. Speed bumps, are important traffic calming devices seen on our roads, which help to physically reduce traffic speed. The work was done in two phases, which were the field study and the questionnaires. During the field study, the coordinates of each speed bump was taken as well as the geometric properties of each speed bump which were the height, length, width and the clear spacing. A comparison was done on the geometric properties of these speed bumps, using the standard of the ‘Federal Heights Municipal Code of Colorado, USA’. A handheld GPS receiver was used to take the coordinates, while measuring tapes were used to measure the geometric properties. The standard width of speed bump was between 0.6m and 1.2m, the standard height was between 0.07m and 0.1m, while the standard length was between 3.65m and 5m. In total, 22 speed bumps were analyzed from 4 streets, of which only 4 speed bumps met the design criteria, which was 18.18% of the entire speed bumps. Also the clear spacing of the speed bumps in all the locations, did not meet the design criteria, as they were either too close to each other, or too far apart. From the questionnaire survey, it showed a vast variation in the response, based on the point of view of each respondent, however, majority of the respondents, were satisfied with the application of speed bumps, in the study area