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Este trabajo presenta una metodología flexible para diseñar un sistema de microtránsito usando vehículos eléctricos. La metodología propuesta está constituida por cinco etapas. Primero, la estimación de la demanda de la población objetivo realizada por medio de encuestas. Segundo, se caracterizan y comparan las capacidades tecnológicas de los medios de transporte potenciales. Tercero, se caracterizan las distintas posibles rutas para el microtránsito para cada opción tecnológica y se escoge la mejor, tomando en cuenta las necesidades del usuario. Esto se logra por medio de herramientas de toma de decisiones y simulación por medio de eventos discretos que representa el funcionamiento del sistema. Finalmente, evaluamos el impacto ambiental que se genera al implementar este nuevo medio de transporte en una ruta de microtránsito. La metodología propuesta es flexible y puede ser aplicada tanto en sistemas de microtransito público como privado. Presentamos un caso de estudio para validar los resultados de la metodología en un campus universitario en Colombia.

This work presents a flexible methodology to design a microtransit system with electric vehicles. The proposed methodology comprises five stages. First, the estimation of the demand is made with qualitative research. Second, the technological capabilities of the potential means of transportation are compared. Third, we characterize the different possible routes for micro-transit for each of the technological options and choose the best option, by considering the needs of the user. This is achieved through a decision-making tool and a discreteevent simulation model that represents the operation of the system. Finally, we evaluate the environmental impact generated by this new mean of transport on a micro-transit route. The proposed methodology is flexible and can be applied both in public and private microtransit systems. We present a case study to validate the results of the methodology on a university campus in Colombia. [ABSTRACT FROM AUTHOR]

Climate change is upon us. The exponential use of fossil fuels for over two centuries is changing the world as we know it. An energy transition towards a greener world is needed and it may entail the decarbonization of several sectors, such as the passenger transport sector. This work aims to evaluate the role of four vehicle technologies, based on six vehicle penetration scenarios. This assessment is made using the comparison of three indicators for these scenarios, energy consumption, water consumption, and required infrastructural change. It was found that a pure battery-electric fleet would require the least amount of energy in 2050. There is also the issue with the loss of jobs in the sugar and alcohol sector, which can be reduced in this scenario of a battery electric vehicle fleet. The opportunities to maintain ethanol production as an energy vector in the transport sector are apparent. [ABSTRACT FROM AUTHOR]

The electric vehicle is a transportation technology that requires a management system for the electric networks of the future in order to avoid overloads and adverse effects on voltage level and power quality. This article presents a management algorithm to adjust the operation and recharge conditions of electric vehicles in real time, optimizing the use of network capacity and improving the voltage profile through the coordination of recharges depending on loss sensitivity; an approach to identify nodes where power losses can decrease or increase under a specific load condition. The results obtained by applying the strategy are presented through a random consumption model of vehicles based on existing mobility patterns using a distribution circuit of 628 nodes. This allows the identification of electric vehicle penetration after which it becomes necessary to implement the proposed management scheme. [ABSTRACT FROM AUTHOR]