scholarly journals Spatial analysis of public transportation infrastructure in Santiago, Chile, using the continuous approximation method

2021 ◽  
Vol 58 ◽  
pp. 309-316
Author(s):  
Marcos Medina-Tapia ◽  
Francesc Robusté ◽  
Miquel Estrada
Keyword(s):  
Spatial Analysis ◽  
Approximation Method ◽  
Public Transportation ◽  
Transportation Infrastructure ◽  
Continuous Approximation

Bicycle Transportation in Shanghai: Status and Prospects

1996 ◽  
Vol 1563 (1) ◽  
pp. 8-15 ◽  
Author(s):  
Cai Jin Xin
Keyword(s):  
Public Transportation ◽  
Traffic Management ◽  
Motor Vehicle ◽  
Transportation System ◽  
Transportation Infrastructure ◽  
Urban Region ◽  
Economic Changes ◽  
Traffic Volumes ◽  
Long Time ◽  
Basic Infrastructure

Shanghai is China's largest city and has a dense concentration of population served by limited transportation infrastructure. Traditionally, bicycles and public transportation have been the dominant modes used by residents, but recent social and economic changes have resulted in a dramatic growth in motor vehicle use and overall traffic volumes. The use of bicycles as a mode of transportation in China and in Shanghai will continue for a long time to come. However, the role of bicycles within Shanghai is changing and will continue to evolve in the future as efforts to enhance basic transportation infrastructure are undertaken and economic and social conditions improve. The complexity of transportation patterns generated by high population densities, coupled with a shortage in basic infrastructure for an urban region of its nature, size, and importance, has created increasingly serious conflicts between motorized and nonmotorized vehicles throughout central Shanghai. These conflicts decrease overall safety and the functional capability of the existing transportation system to meet rapidly increasing travel demands in the municipality. Major improvements are being implemented that will upgrade Shanghai's urban transportation system significantly. They will, however, require a substantial commitment of time and financial resources to complete. In the interim, a comprehensive traffic management effort will be followed that recognizes the importance of bicycles and supports their continued use within the municipality in an appropriate balance with public transportation and other modes consistent with actual conditions and changing demands.

scholarly journals Impact of public transportation infrastructure on employment of the low-income group in Urumqi

2020 ◽  
Vol 39 (1) ◽  
pp. 111-119
Author(s):  
Chun ZHANG ◽  
Zhihua CHENG ◽  
Xiaoping YU ◽  
Yaqun WANG ◽  
Chen SHEN ◽  
...  
Keyword(s):  
Low Income ◽  
Public Transportation ◽  
Income Group ◽  
Transportation Infrastructure

Practical Framework for Benchmarking and Impact Evaluation of Public Transportation Infrastructure: Case of Belo Horizonte, Brazil

2019 ◽  
Vol 2673 (3) ◽  
pp. 711-721 ◽  
Author(s):  
Rounaq Basu ◽  
Bianca Bianchi Alves
Keyword(s):  
Population Density ◽  
Travel Time ◽  
Public Transportation ◽  
Impact Evaluation ◽  
Transportation Infrastructure ◽  
The Public ◽  
Increase With Increase ◽  
Employment Education ◽  
Belo Horizonte

Although accessibility to opportunities is essential for good quality of life, it is strongly dependent on mobility options. This paper provides a practical framework for benchmarking and impact evaluation of public transportation infrastructure, which is demonstrated with a case study of Belo Horizonte in Brazil. It was found that the number of stops per kilometer of bus route is quite low in Belo Horizonte compared with other cities with similar population density, despite the city having a much larger bus network. Three types of opportunities were then considered: employment, education, and potential for social interaction. An isochrone model was used for implementing the cumulative opportunities approach to measure accessibility. GTFS data were used to conduct simulations of transit schedules to obtain two accessibility indicators. The first finding shows that the public transportation system does not provide good connectivity to areas with high population density. While examining sensitivity to travel time thresholds, accessibility was found to increase with increase in travel time but not equally so for populations with different income levels. Lower income cohorts were seen to have lower accessibility than higher income counterparts, irrespective of the type of opportunity. It was found that transport network improvements should aim to reduce the income gap of 60% of BPL population by at least 8%. Finally, recommendations are provided for areas of investment by highlighting critical transit corridors and a critical but isolated underserved suburb. This framework can be easily applied to other case studies around the world.

scholarly journals Vehicular Pollution in Katmandu Valley

1970 ◽  
Vol 8 (1-2) ◽  
pp. 149-152
Author(s):  
Ramchandra Sapkota
Keyword(s):  
Human Health ◽  
Public Transportation ◽  
Traffic Congestion ◽  
Transportation Systems ◽  
Transportation Infrastructure ◽  
Kathmandu Valley ◽  
Particulate Matters ◽  
Vehicular Pollution ◽  
Major Factors ◽  
Public Transportation Systems

This paper highlights the issue of vehicular pollution in the Kathmandu valley. Vehicular pollutants include CO, HC, NOx, Sox, lead and particulate matters which have damaging effects on both human health and ecology. Diesel-driven vehicles emit particulates that are very fine and a large proportion of them are less than 2.5 microns in size, which can penetrate deeper into our lungs. These pollutants are believed to affect the respiratory and cardiovascular systems. Uncontrolled growth of vehicle population, poor transportation infrastructure, traffic congestion, driving patterns and inefficient public transportation systems are major factors in increasing vehicular pollution levels.Key words: Vehicular pollution; Vehicle population; Pollutants; Transportation infrastructure; PM2.5.DOI: http://dx.doi.org/10.3126/jie.v8i1-2.5106Journal of the Institute of EngineeringVol. 8, No. 1&2, 2010/2011Page: 149-152Uploaded Date: 20 July, 2011

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