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In order for electric planes to play a more significant role in decarbonizing air travel, energy density may need to quadruple, Schafer says. This could require novel types of batteries to reach commercialization. Meanwhile, other technologies like alternative fuels and green hydrogen have much higher energy densities, so they’re a more likely candidate for longer flights, provided that they can be produced economically at scale.

This Is What’s Keeping Electric Planes From Taking Off

Casey Crownhart

The pilot will test the curb data specification, a digital tool created by the nonprofit Open Mobility Foundation that uses APIs to gather information on curb activity or dwell time so officials can better manage and regulate curb usage. Cities may also use CDS to digitally publish curb locations and regulation data, which can be shared with residents and businesses using curb space.

City Tests App for Delivery Drivers to Reserve Spots in Loading Zones

Kaitlyn Levinson and Assistant Editor, GCN

Attention Street Design Nerds! One of the most innovative cities in recent years at reconsidering streets for people instead of just for cars, Oslo Norway, has translated their Street Design Manual into English & put it on-line. Worth digging into. #Oslo https://t.co/z6VdiksYLO https://t.co/DpIUa47kXo ![](https://pbs.twimg.com/media/FdyyWvjaIAU_Ma2.jpg) ![](https://pbs.twimg.com/media/FdyyWvkaIAATGeV.jpg) ![](https://pbs.twimg.com/media/FdyyWvjaMAAx1aR.jpg) ![](https://pbs.twimg.com/media/FdyyWvlaIAIQVjO.jpg)

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