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Journal : MEDIA KOMUNIKASI TEKNIK SIPIL

Efektifitas Pemberlakuan Sistem Satu Arah pada Jalan Indraprasta Kota Semarang dalam Rangka Pemerataan Sebaran Beban Lalu Lintas Purwanto, Djoko; Eko Yulipriyono, EPF
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 21, Nomor 1, JULI 2015
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (638.41 KB) | DOI: 10.14710/mkts.v21i1.11230

Abstract

The traffic problems in a big city such as Semarang generally caused by the typical situation like overcrowding at peak hours. To overcome this problem, Semarang Government has implemented “One Way System” on the Indraprasta Street section without providing road partner. This study is intended to identify the effectiveness of this policy. The following streets were reviewed: Indraprasta, Imam Bonjol, Mgr. Soegiyopranoto, and Pierre Tendean. Further, the intersections which studied are Indraprasta-Imam Bonjol-Pierre Tendean and Tugu Muda. Traffic survey data were collected in the morning and afternoon peak hours. Manual Kapasitas Jalan Indonesia 1997 was used in the data analysis procedure. This short-term study was conducted by simulating the proposed scenario and compared with the existing situations.In conclusion, “One Way System” on Indraprasta Street section is assessed not effective due to its relatively small degree of saturation, while Mgr. Soegiyopranoto Street has a large degree of saturation. Therefore, the one-way system to Imam Bonjol Street and Mgr. Soegiyopranoto Street also needed to implement and form a “rotary link“. In addition, enacting contraflow for public transport on Soegiyopranoto Street and Imam Bonjol Street is necessary, also the arrangement of signals and geometric in the intersection that linked those three streets.
Kajian Landai Maksimum, Panajang Landai Kritis dan Panjang Landai Peralihan pada Potongan Memanjang Jalan antar Kota Kushardjoko, Wahyudi; Purwanto, Djoko; Hsb., Elfrin P.; H., Sonny
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 17, Nomor 3, OKTOBER 2009
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (4383.216 KB) | DOI: 10.14710/mkts.v17i3.7859

Abstract

In the engineering of vertical alignment are identified maximum grade and critical length. Maximum grade and critical length by AASHTO and Bina Marga, the vehicle standard is not equal with heavy vehicle operating in Indonesia. The goal of research is to analysis the mulberry of maximum grade and critical length that are definite in the regulation and arranged by Bina Marga, to definite critical length for descend lane and ideal transition grade. From the velocity data when antrance and finished the slanting upward and the heavy of vehicle, it can calculate the critical length. While critical length of descend lane, it can calculate from the amount of maximum braking performed by vehicle, until no happen system braking is damaged. The transition length is definite from distance that’s needed by vehicle from the speed at the end of upward grade, until vehicle speed return to recovery. The results of this research denotes that critical length is relatively smallest than critical length that recommendation by Bina Marga. As consequency of this case, the maximum grade that’s recommended by Bina Marga should be decrease. The limitation of critical length descend lane is needed to avoid damaging of braking system of vehicle. The definition of minimum transition length is recommended to recover vehicle speed design from decrease speed because upward lane, in order to avoid traffic jam. Keywords : Vertical alignment, Critical length, Maximum grade, Transition grade, Heavy vehicle.   Abstrak   Dalam perancangan alinyemen vertikal dikenal istilah “kelandaian maksimum” dan “panjang kritis”. Dalam menentukan besaran landai maksimum dan panjang kritis oleh AASHTO dan Bina Mrga, kendaraan yang dipakai tidak sama dengan kondisi kendaraan berat beroperasi di Indonesia sekarang. Tujuan dari penelitian ini adalah untuk mengkaji besarnya landai maksimum dan panjang kritis yang telah ditentukan oleh peraturan dan tata cara yang telah dikeluarkan oleh Bina Marga, menentukan panjang kritis untuk jalur jalan yang menurun dan menentukan panjang landai peralihan yang ideal. Dari data kecepatan sebelum memasuki tanjakan dan sebelum akhir tanjakan yang diperoleh dari survai setat berat kendaraan kendaraan dapat dihitung panjang kritis. Sedangkan panjang kritis untuk turunan dapat dihitung dari banyaknya pengereman maksimum yang dilakukan oleh kendaraan sehingga tidak terjadi kerusakan sistem rem. Panjang landai peralihan ditentukan dari jarak yang diperlukan kendaraan dari kecepatan pada akhir tanjakan hingga kecepatan kendaraan kembali seperti kecepatan rencana. Hasil penelitian ini menunjukkan panjang kritis yang relatif lebih pendek dibandingkan panjang kritis yang disarankan oleh Bina Marga. Sebagai konsekuensi dari panjang kritis yang relatif pendek, maka landai maksimum yang ditetapkan Bina Marga juga harus diturunkan. Pembatasan panjang kritis untuk turunan juga diperlukan untuk menghindari kerusakan sistem rem pada kendaraan. Penentuan panjang landai peralihan minimum disarankan untuk mengembalikan kecepatan kendaraan yang telah berkurang akibat tanjakan menjadi kecepatan rencana aga tidak terjadi gangguan arus lau lintas. Kata kunci: alinyemen vertical, panjang kritis, landai maksimum, landai peralihan, kendaraan berat.
Perubahan Nilai Ekivalensi Mobil Penumpang Akibat Perubahan Karakteristik Operasional Kendaraan di Jalan Kota Semarang Yulipriyono, EPF. Eko; Purwanto, Djoko
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 23, Nomor 1, JULI 2017
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (399.754 KB) | DOI: 10.14710/mkts.v23i1.12517

Abstract

Passenger Car Equivalent (PCE) is a conversion factor to make equal the various types of vehicles that operating on the road section into one type of vehicles i.e. passenger cars. Indonesian Highway Capacity Manual (MKJI) 1997 has set the PCE values for various types of vehicle groups either motorized. PCE values of various types of vehicles are not absolute because many factors that affect can change over time and development of automotive technology. This study aimed to find out the changes of PCE value that occurs. As for the purpose of research to determine the current number of PCE values due to the change of operational characteristics of vehicles on a highway especially for urban highways. Data analysis for the determination of PCE values used: time headway method, speed method, capacity method, and vehicle dimension method. The conclusion of this study: PCE of light vehicles (LV) = 1 still in accordance with MJKI 1997; PCE of heavy vehicles (HV) varied depending on the road types. PCE of heavy vehicles that according to MKJI 1997 is used as a median; PCE of motorcycles (MC) of MKJI 1997 need to be adjusted to 0.4 or more, particularly in the calculation of actualy traffic flow.
Pengelolaan Transportasi Berwawasan Lingkungan Sebagai Dampak Perkembangan Perkotaan Tak Terkendali (Studi Kasus Kota Semarang) Purwanto, Djoko; Ismiyati, Ismiyati
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 20, Nomor 1, JULI 2014
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (767.805 KB) | DOI: 10.14710/mkts.v20i1.9250

Abstract

The increasing of urban population growth would affect to the increasing settlement growth which expanding uncontrollably toward the suburbs, this condition will influence transportation problem and 70 % air pollution comes from transportation sector (BAPEDAL in 2006). Semarang cities as case study deals with congestion problems in almost all road network; the most surprising thing is with the presence of mass transit services which is BRT, both BRT corridor I and corridor II, it still have a load factor of 27% (Ilham Hussein, 2012). This study aims to: manage environmentally sound public transportation based on the characteristics of people and city of Semarang. The result of study concluded that in order to manage environmentally sound transportation by creating an unified and integrated mass transit; which is by cutting the BRT routes that are less effective and too long, directed to feeder transport from the tip end of track to the end of beginning of peple mobility with a public transport like mini bus for a distance of > 500m and bike or walking track to feeder within 200 – 500m equipped with convenient bicycle and pedestrian infrastructures. Whereas, for the suburbs mobility to other suburbs it can use rail-based mass transportation (MRT).
Hubungan antara Kecepatan dan Kondisi Geometrik Jalan yang Berpotensi Menyebabkan Kecelakaan Lalu Lintas pada Tikungan Purwanto, Djoko; Kusuma Indriastuti, Amelia; Hari Basuki, Kami
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 21, Nomor 2, DESEMBER 2015
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (649.91 KB) | DOI: 10.14710/mkts.v21i2.11234

Abstract

To date, the traffic accident number on hairpin curve is still quite high. This is exacerbated by speeding driving behaviour of some road users.This research aims to identify the factors that cause traffic accidents and drivers’ behaviour at the curve; to review curve geometric design; and to develop a relationship among speed, curve geometric condition and the accident at the curve. This study simply reviewed three hairpin curves that were prone to be blackspots in Batang. The dominant factors that cause accidents were human error and road condition. The driver’s speeding behaviour was indicated by the speed that was lessen when entering and increase when leaving the curve. There were speed variations among vehicles in research location that could increase the number of accident. The results of the geometric review showed that the radius of all curves evaluated did not meet the standard, i.e. less than the minimum radius. Another result of this study was relationships among speed, geometric condition and accident number, as shown by the following formula: Speed = 0.095 Radius + 42.889, No. of accident = - 0.785 Radius + 0.008 Speed - 284.301, and EAN = 0.028 Speed  - 1108.689.
Co-Authors Achmad Jazidie Adrie Sentosa Ahmad Ikhwan Setiawan, Ahmad Ikhwan Ainuddin, Emha Amelia Kusuma Indriastuti Amelia Kusuma Indriastuti, Amelia Amina Sukma Dewi Anas Maulidi Utama Anda Ferwira Andri Widihandoko Andrian, Muhammad Yunus Anifatul Faricha Arhamsyah Arhamsyah, Arhamsyah Ari Santoso Ari Santoso Ari Santoso Astria Nur Irfansyah Attamimi, Muhammad Bima Sena Bayu Dewantara Bonifatius, Dwi Hastjarja Kustijana Budhi Haryanto Budi Tri Cahyana, Budi Tri Budiman, Fajar Chastine Fatichah Dermawan, Dimas Imam Devy Kuswidiastuti Diah Kusumawati, Diah Elfrin P. Hsb. Enny Zulaika EPF Eko Yulipriyono, EPF Epf. Eko Yulipriyono Felix Gunawan Furqan Aliyuddien Gangsarestu, Muhammad Soleh Garudio Kusuma Aji Handry Khoswanto Hani Avrilyantama Hany Ferdinando Hari Agus Sujono Harianto Harianto Haris Hariza Ekarinda Helmy Widyantara Hendra Kusuma Hendro Juwono Irfansyah, Astria Nur Ismiyati Ismiyati Jamhari Jamhari Kami Hari Basuki Kami Hari Basuki Kelvin Liusiani Kusuma, Hendra Siswanto M. Rivai Mannarul Hidayah Muchammad Ainur Fahd Muchammad Ainur Fahd Muhammad Attamimi Muhammad Hilman Fatoni Muhammad Ichlasul Salik Muhammad Rivai Muhammad Rivai Muhammad Rivai Muhammad Yunus Andrian Muharom, Syahri Nanda, Muhammad Achirul Naysila, Novita Prajna Wirya Kencana Putra Purbaningtyas, Retno Utami Putra, Karisma Trinanda Rahayu, Vidya Windi Retno Tri Wahyuni Rinne Nintasari Riza Agung Rizki Anhar R.P. Ronny Mardianto Ronny Mardiyanto, Ronny Rudy Dikairono Ruth Johana Hutagalung Setiawardhana Setiawardhana Setiawardhana Sonny H. Suryani, Santy Diah Suwito Suwito Takayuki Nagai Taufiq, Husen Totok Mujiono, Totok Tri Arief Sardjono Try Yuliandre Pajar Uroidhi, Ali Wahyudi Kushardjoko Widodo Budiharto Widodo Budiharto Widodo Budiharto Yunardi, Riky Tri