Photo: Bosch Rexroth

The Environmental Waste Services Department of Garland, Texas, is testing how hydrostatic regenerative braking affects emissions, fuel use, and operating costs of two Heil Environmental Industries Python continuous-pack, rapid-rail, automated side loaders mounted on a Crane Carrier Co. low-entry tilt chassis. Sponsored by the Houston Advanced Research Center with funding from the Texas Environmental Research Consortium and Texas Commission on Environmental Quality, researchers are logging the results of braking, acceleration, route collection, and dynamometer testing. (For more on hybrid and alternative-fuel vehicles, click here.)