1667289 - Geospatial Route Energy Model for ZEBs: First Step Towards Sustainable Vehicle Selection

This presentation explores the capabilities of the CALSTART Geospatial Route Energy Model, an advanced Python-based a web-based tool conceived to streamline the planning process for the deployment of zero-emission electric and hydrogen vehicles.

The REM tool is designed to simulate the performance parameters of a specific zero-emission buses along any route, enabling transit agencies to predict energy consumption and optimize the deployment of these buses. The tool allows users to select a specific make and model of bus for a given route. Moreover, the model provides the additional capability of generating en-route and depot charging scenarios. This advanced functionality supports transit agencies in understanding and selecting optimal infrastructure-bus combinations, an integral component in the development of efficient, sustainable transit networks.

The model functions by utilizing General Transit Feed Specification (GTFS) files, an essential tool in modern transit mapping. This aids in ascertaining the route path and schedule. Subsequently, the model initiates a simulation of energy consumed and regenerated along the designated route considering elevation change. This process is facilitated by a digital elevation model (DEM), which adds the crucial spatial component to the energy consumption estimates. 

Additionally, the REM accounts for other route characteristics such as variation in the Heating, Ventilation, and Air Conditioning (HVAC) loads, which vary in tandem with seasonal temperature shifts. Through the integration of these parameters, the model is a comprehensive tool for transit agencies, promoting informed vehicle selection and route assignment in an era of heightened emphasis on energy efficiency and sustainability. In summary, the REM tool helps in determining the range of energy/hydrogen consumption of ZEBs throughout the year and charging solution along a designated route.