Modeling Interstation Travel Speed of Hybrid Bus Rapid Transit within A Bayesian Framework

2019 ◽  
Vol 2 (5) ◽  
Author(s):  
Ji-hua Hu ◽  
Jia-xian Liang

Interstation travel speed is an important indicator of the running state of hybrid Bus Rapid Transit and passenger experience. Due to the influence of road traffic, traffic lights and other factors, the interstation travel speeds are often some kind of multi-peak and it is difficult to use a single distribution to model them. In this paper, a Gaussian mixture model charactizing the interstation travel speed of hybrid BRT under a Bayesian framework is established. The parameters of the model are inferred using the Reversible-Jump Markov Chain Monte Carlo approach (RJMCMC), including the number of model components and the weight, mean and variance of each component. Then the model is applied to Guangzhou BRT, a kind of hybrid BRT. From the results, it can be observed that the model can very effectively describe the heterogeneous speed data among different inter-stations, and provide richer information usually not available from the traditional models, and the model also produces an excellent fit to each multimodal speed distribution curve of the inter-stations. The causes of different speed distribution can be identified through investigating the Internet map of GBRT, they are big road traffic and long traffic lights respectively, which always contribute to a main road crossing. So, the BRT lane should be elevated through the main road to decrease the complexity of the running state.

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1377 ◽  
Author(s):  
Syyed Adnan Raheel Shah ◽  
Monib Shahzad ◽  
Naveed Ahmad ◽  
Abdullah Zamad ◽  
Sabahat Hussan ◽  
...  

The development of the bus rapid transit system (BRTS) is tremendously growing in developing countries of the world. In large cities, the projection of transportation intends to enhance economic growth and changes the image of the city for both residents and outsiders. The purpose of this research was to study the application of alternative options for energy efficient BRTS in developing countries. The BRTS has some of its accessibility patterns that relate to the socio-economic strata. A decision-making efficiency analysis methodology has been applied to analyze the comparative analysis of both conventional fuel and hybrid bus systems for the Multan city of Pakistan. The section-wise application of a hybrid energy-based bus system has been analyzed in comparison to the conventional bus system. Out of 21 stations, the efficiency-wise hybrid bus system remained superior or equivalent to the standard value of 1 except one midpoint section. The finding of the analysis indicates that the hybrid mechanism of buses can not only replace a conventional fuel-based system, but will also help as an energy-efficient and eco-friendly economical solution. This study will help to revolutionize the bus rapid transit system in developing countries.


2017 ◽  
Vol 113 (08) ◽  
pp. 1586
Author(s):  
Harprinderjot Singh ◽  
Ankit Kathuria ◽  
Ravi Sekhar ◽  
M. Parida

Jurnal HPJI ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 75-84
Author(s):  
Qadriathi Dg Bau ◽  
Reza Muhajir ◽  
Batara Surya

Abstract Bus Rapid Transit is expected to become mass transportation serving the Mamminasata agglomeration area, which includes Makassar City, Maros Regency, Gowa Regency and Takalar Regency. Efforts to realize the South Sulawesi Provincial Government program related to the implementation of the Mamminasata Bus Rapid Transit are very dependent on the services provided. This study aims to analyze the effectiveness of service performance and its effect on the movement system in Corridor 3 of the Mamminasata Region. This research method uses descriptive analysis techniques. The results of this study indicate that several service perfor-mance criteria are effective, such as service quality based on travel speed, level of fleet availability, vehicle age, low costs or affordable rates, safety or security and convenience, and timeliness of service based on travel time of each segment and service time. Whereas those that have not been effective include number of buses and fleet capacity, load factor, frequency, distance between stops, operating ratio, regularity, orderliness, accessibility, reliability, easily-accessed information, waiting time, headway, vehicle downtime, travel time, and circulation time. Keywords: Bus Rapid Transit, mass transit, service performance, movement system  Abstrak Bus Rapid Transit diharapkan menjadi angkutan massal yang melayani wilayah aglomerasi Mamminasata, yang meliputi Kota Makassar, Kabupaten Maros, Kabupaten Gowa, dan Kabupaten Takalar. Upaya mewujudkan program Pemerintah Provinsi Sulawesi Selatan terkait penerapan Bus Rapid Transit Mamminasata ini sangat bergantung pada pelayanan yang diberikan. Penelitian ini bertujuan menganalisis efektivitas kinerja pelayanan dan pengaruhnya terhadap sistem pergerakan di Koridor 3 Kawasan Mamminasata. Metode penelitian ini menggunakan teknik analisis deskriptif. Hasil penelitian ini menunjukkan bahwa beberapa kriteria kinerja pelayanan sudah efektif, seperti kualitas pelayanan berdasarkan kecepatan perjalanan, tingkat ketersediaan armada, umur kendaraan, biaya rendah atau tarif terjangkau, keselamatan atau keamanan dan kenyamanan, serta ketepatan waktu pelayanan berdasarkan waktu tempuh setiap segmen dan waktu pelayanan. Sedangkan yang belum efektif meliputi kapasitas dan jumlah armada, faktor muat, frekuensi, jarak antarhalte, rasio operasi, keteraturan, ketertiban, komprehensif, aksesibilitas, keandalan, kemudahan informasi, waktu tunggu, waktu antara, waktu henti kendaraan, waktu perjalanan, serta waktu sirkulasi. Kata-kata kunci: Bus Rapid Transit, angkutan massal, kinerja pelayanan, sistem pergerakan


2021 ◽  
Vol 13 (11) ◽  
pp. 6325
Author(s):  
Zhong Wang ◽  
Fengmin Lan ◽  
Zijing Lin ◽  
Lian Lian

Bus rapid transit (BRT) is characterized by higher speed, higher comfort level, and larger capacity than conventional bus service. Although many cities worldwide have adopted BRT in recent years, there is an absence of scientific and quantitative approach for BRT network planning. The problem of BRT planning in an existing transportation network is very complex with constraints of road geometrics, regulations, right of way, travel demand, vehicle operations, and so on. This paper focuses on developing an optimization model for BRT network planning, where an integer programing model is established to identify station locations and route layout with the objective of maximizing the number of trips served by the network, subjected to constraints including distance between stations, cost of construction, road geometrics, etc. The detour factor of the BRT route, which is an important indicator but widely ignored in previous studies, is also taken as a constraint. A heuristic method is applied to generate optimal solutions to the integer programming model, followed by a case study using the transportation network and travel demand data in Luoyang, China. The numerical results show that the method is valid and can therefore be applied to improve BRT network planning and the sustainable transportation system development.


Author(s):  
Sergio Nesmachnow ◽  
Renzo Massobrio ◽  
Efraín Arreche ◽  
Christine Mumford ◽  
Ana Carolina Olivera ◽  
...  

2017 ◽  
Vol 11 (1) ◽  
pp. 102-109 ◽  
Author(s):  
Adeyinka Peter Ajayi

Background:This paper filled an important gap in the on-going global assessment of Bus Rapid Transit (BRT) operations on Road Traffic Crashes (RTC) safety outcomes on corridors plied.Introduction:The work carried out a scientific investigation of the impact of Lagos BRT-Lite(Africa’s first and only BRT scheme) on the achievement of a possible reduction in the incidences of RTC on the 22-kilometer radial highway that connects Mile12 and Lagos Island the traditional central business district.Methodology:Secondary data on the incidences of RTC on the corridor between 2002 and 2013 were obtained from Nigeria Police. One-way Analysis of variance between subjects revealed that the advent of BRT operations on the corridor do not have any significant effect in the reported cases of the three categories of RTC examined. Minor (p=. 783), Serious (p= .887) and Fatal (p= .826).Data Analysis:Descriptive statistics, however, showed that there has been a general reduction in the incidences of all categories of RTC considered in the period after the commencement of BRT on the corridor.Conclusion:The paper concludes by positing that while it might be far-fetched to imply a direct causal relationship between the introduction of BRT and reduction in the cases of RTC on the corridor, it may not be far to suggest that it has definitely impacted safety outcomes as it relates to RTC.


Author(s):  
Geanesson Alberto de Oliveira Santos ◽  
Eriberto Oliveira do Nascimento ◽  
Paulo Henrique Trombeta Zannin

Noise pollution is generally imperceptible, but it can cause various disorders, including psychological disorders, hearing loss and cardiovascular disease. Curitiba Municipal Law 10.625:2002 establishes upper limits of daytime noise exposure according to zoning areas and land use in the City of Curitiba. The purpose of this study was to evaluate noise immissions of urban traffic in the proximities of Bus Rapid Transit (BRT) shelters in Curitiba, Brazil. Daytime traffic noise levels were measured between 8am and 5pm near the entrance of these bus shelters in July and August 2014. Fifty-four measurement points at parks, residences, stores, schools, universities and hospitals in different zoning groups of the municipality were selected as a function of the type of population. The noise levels were recorded using a class I sound level meter. Brazil has no specific standard or law for traffic noise immissions, so the guidelines of the Brazilian standard ABNT NBR 10151:2000 were used. It was concluded that 74% of the measured noise levels varied from 70 to 76 dB(A). Only point 48, close to the Antônio Meireles Sobrinho BRT Shelter, was considered free of noise pollution. Traffic noise accounts for an overall average of 73 dB(A). A few bus shelters installed on the same street had an absolute average difference of 3 dB(A), while bus shelters located farther away from roads were the least noisy. The lowest average traffic noise levels, i.e., 71 dB(A), were recorded on roads for exclusive use by BRT buses.


CICTP 2017 ◽  
2018 ◽  
Author(s):  
Hua-Wei Gong ◽  
Wen-Zhou Jin ◽  
Xiao-Dong Zang ◽  
Qiang Luo

2017 ◽  
Vol 15 (1) ◽  
pp. 33
Author(s):  
Ummu Kalsum ◽  
M.Yamin Jinca

Fenomena suburbanisasi yang terjadi di kota Makassar mendorong terciptanya pusat-pusat aktivitas baru di kawasan pinggiran dan menimbulkan berbagai masalah baru, seperti masalah transportasi. Penelitian ini menjelaskan arah perkembangan kota di wilayah suburban, karakteristik pergerakan, kondisi pelayanan angkutan massal dan menemukan strategi pengembangan transportasi angkutan massal. Proses pengumpulan data dilakukan melalui observasi lapangan dan wawancara, kemudian dianalisis menggunakan mapping analysis, deskriptif kuantitatif, komparasi dan SWOT untuk menemukan strategi pengembangan. Hasil studi menunjukkan bahwa kota berkembang ke arah  Timur dan Selatan serta tidak sesuai dengan hierarki jalan. Disamping itu masyarakat suburban dominan melakukan perjalanan 5 kali dalam seminggu dengan waktu tempuh berkisar 30 menit. Pelayanan angkutan massal menggunakan bus (Bus Rapid Transit) masih rendah karena halte masih sulit dijangkau meskipun biaya penggunaannya sangat terjangkau dan memberikan kenyamanan lebih dibanding angkutan massal lainnya. Oleh karena itu diperlukan strategi pengembangan konsep transportasi yang bersifat mikro dan adaptif untuk diterapkan.


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