Se consideraron la categoría de impacto cambio climático (emisiones de C0 2-eq) y las emisiones de PM 2.5, CO y NOx. Se usó el software OpenLCA ®, la base de datos Ecoinvent y la información disponible en la ciudad. Se empleó la metodología Análisis de Ciclo de Vida (ACV) del pozo a las ruedas (well-to-wheels). Emissions, Climate change, Air quality, OpenLCA, Biofuels, Sustainable urban transport.Įste trabajo presenta las emisiones del sistema de transporte masivo (BRT) TransMilenio, en comparación con otros medios de transporte de pasajeros de Bogotá, Colombia. However, these values are lowerthan reductions achieved when strategies are focused on controlling emissions from other vehicle categories. Finally, if TransMilenio buses change from diesel to electricity, C02- eq and PM 2.5 emissions would be reduced by 86% and 88%, respectively. The highest emissions of PM 2.5 are given by motorcycles and private cars, and taxis present the highest emissions of NOx. While the lowest emissions of PM 2.5 were achieved by an electric BRT and buses powered by natural gas. Results of this work indicate that public transport buses including BRT produce the lowest emissions of CO 2-eq, CO and NOx. The functional unit is mass of pollutant per kilometer and per passenger transported (mass/km-passenger). The impact category climate change (C0 2-eq) and emissions of PM 2.5, CO and NOx were considered. We used the OpenLCA software, the Ecoinvent database and all the information available in the city to perform this LCA. We applied the life-cycle assessment (LCA) and the well-to-wheels approach. This work presents Life Cycle Emissions from the Bus Rapid Transit System (BRT) TransMilenio compared to other modes of passenger transportation in Bogota, Colombia ®. * To whom correspondence should be addressed Life cycle emissions from a bus rapid transit system and comparison with other modes of passenger transportation.

Yohen Cuéllar 1 Rodrigo Buitrago-Tello 1 and Luis-Carlos Belalcazar-Ceron 1*ġ Departamento de Ingeniería Química y Ambiental, Facultad de Ingeniería, Universidad Nacional de Colombia, Bogotá, ColombiaĮ-mail: to cite: Cuéllar, Y, Buitrago-Tello, R. LIFE CYCLE EMISSIONS FROM A BUS RAPID TRANSIT SYSTEM AND COMPARISON WITH OTHER MODES OF PASSENGER TRANSPORTATIONĮMISIONES GENERADAS EN EL CICLO DE VIDA DE UN BUS DE TRANSITO RÁPIDO Y COMPARACIÓN CON OTROS MODOS DE TRANSPORTE DE PASAJEROSĮMISSÕES GERADAS NO CICLO DE VIDA DE UM ÔNIBUS DE TRÂNSITO RÁPIDO E COMPARATIVA COM OUTROS MODOS DE TRANSPORTE DE PASSAGEIROS

Openlca cml biogenic carbon