KAJIAN PERMASALAHAN LALU LINTAS PADA JALAN NASIONAL KABUPATEN SEMARANG BERBASIS SISTEM INFORMASI GEOGRAFIS

Abstract

National road in Semarang regency have traffic load is very high with the problems of Traffic jam and traffic accidents. The purpose of this research are: 1) Identify the characteristics of the location of critical points of congestion and traffic accident-prone areas. 2) Make the handling of traffic jams. 3) Make the handling of a traffic accident in accident-prone areas. The method used in this study using quantitative research analysis technique level of service (LOS) and for crash analysis technique Z-Score as well as the ranking of the crash site to identify accident-prone areas. The research result is a level of service across the national road into the sample Semarang regency, during peak hour have class LoS D until class LoS E, and the average LoS C during the hours roll. Roads that identified accident-prone areas include roads Ungaran-Bawen with the number of the accidents amounted to 314 events with a Z-score of 1.80 and the accident rate 34.20 (100JPKP), roads Bawen-Salatiga with the accidents amounted to 142 events with the value of Z-score of 0.02 and the accident rate 35.47 (100JPKP) and roads Bawen-Temanggung with the accidents amounted to 176 events with a Z-score of 0.37 and the accident rate 21.35 (100JPKP).