Like systems used in electric vehicles like the Prius, an energy company think it could attach flywheels to subway trains and use the kinetic energy of their movement to generate energy that would feed back into the system.
Subway trains use a significant amount of energy to get going, up to 4 megawatts, writes Timon Singh:
"That's enough energy to power 1,300 average U.S. homes. The power usage is so great that train departures are staggered in order to accomdate the availability of power."
Vykon, the company developing the flywheels, thinks it can generate up to 4 megawatts from the subway's kinetic energy and send it back into the system.
Coming Soon to Ohio: The Largest Agrivoltaic Farm in the US
The ambitious 6,000-acre project will combine an 800-watt solar farm with crop and livestock production.
Pennsylvania Mall Conversion Bill Passes House
If passed, the bill would promote the adaptive reuse of defunct commercial buildings.
U.S. Supreme Court: California's Impact Fees May Violate Takings Clause
A California property owner took El Dorado County to state court after paying a traffic impact fee he felt was exorbitant. He lost in trial court, appellate court, and the California Supreme Court denied review. Then the U.S. Supreme Court acted.
Dallas Surburb Bans New Airbnbs
Plano’s city council banned all new permits for short-term rentals as concerns about their impacts on housing costs grow.
Divvy Introduces E-Bike Charging Docks
New, circular docks let e-bikes charge at stations, eliminating the need for frequent battery swaps.
How Freeway Projects Impact Climate Resilience
In addition to displacement and public health impacts, highway expansions can also make communities less resilient to flooding and other climate-related disasters.
City of Costa Mesa
Licking County
Barrett Planning Group LLC
HUD's Office of Policy Development and Research
Mpact Transit + Community
HUD's Office of Policy Development and Research
Tufts University, Department of Urban and Environmental Policy & Planning
City of Universal City TX
ULI Northwest Arkansas
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.