Data generated by travel modes can inform planners and regulators in improving the transportation system, but private mobility companies often restrict their access for concerns about privacy and competition.
U.S. PIRG wants states to use funding from multi-billion dollar Volkswagen settlements to convert the nation's school bus fleet, 95% of which is diesel-powered, to zero-emission buses to reduce children's exposure to toxic air pollution.
The move is risky. The agency has no electric buses now, and the last ones it operated performed so badly they had to be returned. The plan is to make the transition in phases, and hope that battery technology improves.
<p>In the San Francisco Bay Area, two public transit agencies are conducting trials with "Zero Emission Buses", or ZEBs. They are using different types of hydrogen fuel cell technologies, with very different results.</p>