REKAYASA SIMPANG TIDAK BERSINYAL DAN OPTIMALISASI KINERJA SEBAGAI PENANGANAN TITIK RAWAN KECELAKAAN (STUDI KASUS SIMPANG RINGIN SEMAR)

The Ringin Semar 3-way junction is an unsignalized triple intersection
located in the Tegalharjo sub-district, Surakarta City where the intersection is one
of the accident-prone points in Surakarta City based on accident data in the last 4
years obtained from the Surakarta City Police Resort, therefore This study aims to
provide recommendations to related parties in terms of handling the Ringin Semar
Intersection.
There are 3 recommendations given in this study using two methods, namely
the first using the 2023 Indonesian Road Capacity Guidelines and the second using
the Vissim Simulation Model besides using the GEH method in determining
validation on vissim. The best recommendation proposed in the research is the Third
Recommendation, namely by changing the type of intersection control to be
signalized or APILL (Traffic Signaling Tool) and making geometric changes on Jl
Monginsidi with a width of 1 meter with the performance results obtained on the
PKJI method, namely the degree of saturation of 0.56 and the queue length is 13.33
63.11 with an average intersection delay of 27.739 while using Vissim the queue
length (Qlength) is 8.64m-90.50m and the vehicle delay is 13.44- 122.39. However,
if the Third Recommendation is not yet possible to implement, then the Second and
First Recommendations can be a second option, by changing the type of intersection
control to signalized with or without early cut off without changing the intersection
geometry. Besides this, improving markings and adding road equipment in the form
of signs are also additional suggestions for this research
Keywoard: 3-way junction, PKJI, Vissim, GEH, Recommendations, Signalized
IntersectionS