PENGARUH PENUTUPAN PINTU PERLINTASAN JALAN REL TERHADAP KINERJA LALU LINTAS JALAN RAYA DI PERLINTASAN KALIGAWE SEMARANG DAN KALIWUNGU KENDAL
ABSTRACT: The Intersection
between railway crossings with roads have any problems, especially when the
railway gate were closed while trains pass. The problem is the queue of
vehicles and the time of vehicle back to normal before the crossings opened.
Geometric of Kaligawe Road is 4/2D with all types of vehicles and Kaliwungu is
2/2UD dominated by light vehicles. Both are in the class of primary arterial
road. The data was collected by surveying directly at the two railway – roadway
crossing at peak hours in the morning, afternoon, and evening. The data were
taken during the normal flow is the flow rate (flow) vehicle, traffic speed,
road geometric, and a long stream of vehicles crossing back to normal when the
railway gate is opened. Meanwhile, when the railway gate is closed is the speed
of shockwave, railway gate closing time, and a queue of vehicles. The data was
then analyzed using the shockwave method, the capacity of the road using
Highway Capacity Manual guidelines (MKJI) 1997 and theoretically Greenshields models
are then compared the results, in order to obtain the queue length and time of
return to normal road traffic due to the effect of the closure of crossings
when trains pass. The results of analysis on the existing condition at Kaligawe
Semarang and Kaliwungu Kendal still able to accommodate vehicular traffic
passing through the intersection, because based on Timetabling 2013 +72
recorded trains pass each day with a headway of trains in peak hour morning,
afternoon, and evening the average is 22 minutes if the closure 3-4 minutes.
For Kaligawe Road if closure (t) = 3 minutes long queue gained = 0.15 to 0.25
miles with vehicles back to normal after crossing when the door is opened (t2)
= 3.913 to 5 minutes, and if t = 4 minutes queue length obtained = 0.2 to 1.66
km with t2 = 5.21 to 6.68 minutes. While on the Road Kaliwungu if t = 3 minutes
obtained queue length = 0.078 to 0.366 km with t2 = 4.172 to 11.88 minutes and
if t = 4 minutes obtained queue length = 0.105 to 0.5 km with t2 = 5.564 to
15.85 minutes. t2 obtained in Jalan Kaligawe and Kaliwungu still less than 22
and 25 minutes. Responding PT.KAI plan which will operate a double track to
increase the frequency of trains ± 72 to ± 200 trains per day. Based on the
assumption that the headway of trains is the same every hour it is 7.2 minutes,
then the results of the analysis for the Kaligawe road still able to
accommodate traffic in the event of the closure 3-4 minutes, but for the
Kaliwungu are no longer able to accommodate traffic flow if the closing 3 and 4
minutes because t2 obtained is 11.88 and 15.85 minutes. Besides, the degree of
saturation (DS) in Kaligawe road = 0.401 and Kaliwungu = 0,747, to get for good
traffic performance, for Kaliwungu Road becomes necessary to change the
geometric 4/2D. The results of these observations can be useful in making
policy considerations relevant to the response effort DEPARTMENT PT.KAI operate
the double track in 2014 in order to maximize the performance of the Road
Traffic Road Kaliwungu Kendal and Kaligawe Semarang.
PENULIS: Mukthy Yusyadiputra,
Robby Hermawanto, Bambang Pudjianto, Eko Yulipriyono
Kode Jurnal: jptsipildd140499
