The quality of service provided to passengers in high-frequency bus routes can be affected by variety of factors. According to this fact that high-frequency bus routes have high passenger demand and short headways (less than 10 minutes), interaction between buses would be much higher, causing decline in reliability of service. In order to represent a busy bus operation in Kuala Lumpur city centre network, a simulation model will be calibrated. The calibration and validation parameters for the key bus route will derive from data captured by the Automatic Vehicle Location (AVL) and Automatic Fare Collection (AFC) system and procedures will be outlined to adapt the model to other bus routes. The study is in its initial stage to find out what factors have highest impact on reliability of high-frequency bus services in the city centre. An initial model was developed for forecasting passenger demand by using RSM. The simulation model will first be used to conduct a sensitivity analysis of the factors influencing reliability, such as passenger demand, terminal departure behaviour, and unfilled trips. Next, several operating strategies, including terminal departure and time-point holding will be modelled and evaluated for their potential to improve reliability. Model results show that which strategies and factors can significantly improve bus service reliability. Keywords: High-frequency; reliability; headway; simulation; automatic vehicle location; automatic fare collection Kualiti perkhidmatan yang diberikan kepada penumpang di laluan bas berkekerapan tinggi boleh dipengaruhi oleh pelbagai faktor. Secara teori, laluan bas berkekerapan tinggi mempunyai permintaan penumpang yang tinggi dan masa kekerapan yang pendek (kurang daripada 10 minit), interaksi antara bas akan menjadi lebih tinggi, menyebabkan penurunan dalam keberkesanan perkhidmatan. Dalam usaha untuk mewakili operasi bas yang sibuk di rangkaian pusat bandar Kuala Lumpur, model simulasi akan ditentukur. Kalibrasi dan kesahihan parameter untuk laluan bas utama akan diambil dari data yang dirakam oleh sistem Lokasi Kenderaan Automatik (LKA) dan Koleksi Tambang Automatik (KTA) dan prosedur akan digunakan untuk menyesuaikan model bagi laluan bas lain. Kajian ini adalah di peringkat awal untuk mengetahui faktor yang memberi kesan kepada keberkesanan perkhidmatan bas berkekerapan tinggi di pusat bandar. Satu model awal dibangunkan untuk meramalkan permintaan penumpang dengan menggunakan RSM. Model simulasi terlebih dahulu akan digunakan untuk menjalankan analisis faktor sensitiviti yang mempengaruhi keberkesanan, seperti permintaan penumpang, tingkah laku berlepas terminal, dan perjalanan yang tidak dipenuhi. Seterusnya, beberapa strategi operasi, termasuk berlepas dari terminal dan masa-titik penantian akan dimodelkan dan dinilai bagi potensi mereka untuk meningkatkan keberkesanannya. Keputusan model menunjukkan strategi dan faktor ketara yang boleh meningkatkan keberkesanan perkhidmatan bas. Kata kunci: Berkekerapan
In order to represent a busy bus operation in Kuala Lumpur city centre network, a simulation model was proposed by Moosavi et al. REF .
Development of Simulation Model to Improve Bus Service Reliability at High-Frequency Operation
Jurnal Teknologi
Jurnal Teknologi
Engineering