STUDY OF ON STREET PARKING AND PEDESTRIANS INFLUENCE ON TRAFFIC FLOW PARAMETERS IN HAWASSA CITY (A CASE STUDY ON ADARE HOSPITAL TO MOBIL SEFER ROAD SECTION)

Abstract

On street parking in the city specially on active commercial areas affects the free movement of vehicles and be a contributory cause for smooth movement of traffic flow. This thesis aimed to study the influence of on street parking that affects the traffic flow by reducing the lane width of designed driveway as well as increasing the maneuvering time. Pedestrian illegal crossings have been also one of the contributory influence on traffic flow. The primary data was collected on a marked segment (120m base length for traffic flow characteristics and 54m base length for Spotspeed) where business activities were highly active at Arab Sefer. In order to clearly visible for video recording, G+ 4 at Oumer Sani building was used. Field survey for road condition was conducted throughout the segment using measuring tape. Traffic count for spot speed has been conducted from 6:30AM to 7:00AM while the traffic is very less for the duration of 30min. Traffic characteristics and parameters were recorded for five working days for 12 hours from 6:30AM to 6:30PM. Data were retrieved for traffic volume, average travel speed and maneuvering time, on street parking characteristics and pedestrian crossing were studied from the video using tally marks with an interval of 15min. using Video processing software, KMPlayer 64X. Multivariate multiple linear regression analysis was used for statistical analysis. On street parking and pedestrians have significant influence on remaining lane width (R2 = 93.7% p =0.000), average maneuvering time with (R2 = 93.2% p =0.000), traffic flow with (R2 = 90.1% p =0.000), average travel speed with (R2 = 88.0% p =0.000) and followed by density with (R2 = 86.6% p =0.000). According to the test result of MANCOVA, main effect of multivariate test results showed that On street parking has an influence on traffic flow, density and remaining lane width by 35.9%, 39.9% and 7.4% respectively. Pedestrians traffic have influenced on traffic flow, density and remaining lane width by 38.0%, 36.5% and 21.30% respectively. In respect to the covariate (interaction), on street parking and pedestrians together influence on traffic flow, average travel speed, density and average maneuvering time by 55.8%, 1.7%, 55.1% and 6.6% respectively