Life cycle emissions from a Bus Rapid Transit system and comparison with other modes of passenger transportation

Cuéllar, Yohen; Buitrago-Tello, Rodrigo; Cerón, Luis Carlos Belalcázar

doi:10.29047/01225383.13

Cited by 18 publications

(7 citation statements)

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“…For CO, NOx and VOC pollutants, the newer technologies present greater reductions related to new emission control technologies and improvements in the combustion process [26], [35], [38]. The reduction of CO and NOx emissions is consistent with the application of the life-cycle assessment LCA model in Bogotá [39]. Finally, the PM emission factors show the largest changes comparing old vs new vehicles.…”

Section: Estimating Local Efsmentioning

confidence: 61%

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A new database of on-road vehicle emission factors for Colombia: A case study of Bogotá

Ramírez¹,

Pachón²,

Casas³

et al. 2019

CT&F Cienc. Tecnol. Futuro

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Mobile sources contribute directly or indirectly with most of the atmospheric emissions in Colombian cities. Quantification of mobile source emissions rely on emission factors (EF) and vehicle activity. However, EF for vehicles in the country have not evolved at the same time as fleet renovation and fuel composition changes in the last few years. In fact, estimated EF before 2010 may not reflect the reduction of sulfur content in diesel and the renovation and deterioration of passenger vehicles; therefore, emission levels may be over or under estimated. To account for these changes, we have implemented the MOVES model in Bogota and obtained a new database of on-road vehicle emission factors. For this purpose, local information of activity rates, speed profiles, vehicle population distribution and age, meteorology and fuel composition was used. Emissions were estimated with these new set of EF and compared with previous inventories. We observed large reductions in SO2 (-87%), CO (-65%) and VOC (-62%) emissions from mobiles sources and lower reductions in NOx (-20%). Other pollutants such as PM2.5 (+15%) and CO2 (+28%) reported increases. This paper includes a new database of on-road vehicle emission factors for Bogota, which can be applied in other Colombian cities in the absence of local data.

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Section: Estimating Local Efsmentioning

confidence: 61%

“…There may be some overestimation of emissions for motorcycles, but given the poor maintenance of this fleet, addedto road conditions in the city, emissions can be actually greater. In fact, other studies in Bogota have found motorcycle PM 2.5 emissions well above emission from all other vehicle categories [39].…”

Section: Emission Inventory Resultsmentioning

confidence: 85%

A new database of on-road vehicle emission factors for Colombia: A case study of Bogotá

Ramírez¹,

Pachón²,

Casas³

et al. 2019

CT&F Cienc. Tecnol. Futuro

View full text Add to dashboard Cite

show abstract

“…Different fuel consumption parameters like compressed natural gas (CNG), Diesel Fuel features were also discussed [10]. Overall energy-efficient performance study is necessary for BRTS for the efficient rapid bus transit system [1,[11][12][13][14]. Fuel and energy consumption for public transport utilization is one of the cases to be studied for an efficient transport system [15][16][17].…”

Section: Energy Consumptionmentioning

confidence: 99%

Performance Evaluation of Bus Rapid Transit System: A Comparative Analysis of Alternative Approaches for Energy Efficient Eco-Friendly Public Transport System

Shah

Shahzad²,

Ahmad

et al. 2020

Energies

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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.

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“…In relation to studies about GHG emissions, Cuellar et al [42] compared different sources of CO 2 in the means of transport in Bogotá. His main result showed that public transport is not the main source of emissions.…”

Section: Co 2 Reduction In the Distribution Of Perishable Products Inmentioning

confidence: 99%

Vehicles Allocation for Fruit Distribution Considering CO2 Emissions and Decisions on Subcontracting

2018

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An important problem in rural-area supply chains is how to transport the harvested fruit to urban areas. Low-and medium-capacity vehicles are used in Colombia to carry out this activity. Operating them comes with an inherent cost and generates carbon emissions. Normally, minimizing operating costs and minimizing carbon emissions are conflicting objectives to allocate such vehicles efficiently in any of the supply chain echelons. We designed a multi-objective mixed-integer programming model to address this problem and solved it via the ε-constraint method. It includes decisions mainly about quantities of fruit to transport and store, types of vehicles to allocate according to their capacities, CO 2 emission levels of these vehicles, and subcontracting on the collection process. The main results show two schedules for allocating the vehicles, showing minimum and maximum CO 2 emissions. Minimum CO 2 emissions scheme require subcontracting and the maximum CO 2 scheme does not. Then, a Pareto frontier shows that CO 2 emissions level are inversely proportional to total management cost for different scenarios in which fruit supply was modified.

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Life cycle emissions from a Bus Rapid Transit system and comparison with other modes of passenger transportation

Cited by 18 publications

References 0 publications

A new database of on-road vehicle emission factors for Colombia: A case study of Bogotá

A new database of on-road vehicle emission factors for Colombia: A case study of Bogotá

Performance Evaluation of Bus Rapid Transit System: A Comparative Analysis of Alternative Approaches for Energy Efficient Eco-Friendly Public Transport System

Vehicles Allocation for Fruit Distribution Considering CO2 Emissions and Decisions on Subcontracting

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