ALTRIOS ROUTE (IMAGE) Southwest Research Institute Caption Pictured: ALTRIOS simulated a route through the Cascade Mountains in Washington state, showing a battery-electric locomotive’s state of charge (indicated by the dot size). ALTRIOS accounts for trains stopping to allow others to pass (orange), battery usage as trains climb mountains (red) and regenerative battery charging as trains descend the mountain (green). Credit Southwest Research Institute Usage Restrictions Images/Videos may be used by the public for educational and informational purposes only. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.