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A cul-de-sac ends among pads for new home construction left dormant in Rancho Cucamonga, California. Photo: David McNew/Getty Images.

The cul-de-sac has been a staple of urban development — and families' real estate wish lists — for the last 50 years. Now some cities are banning them from new developments.

Why it matters: Street-network sprawl determines a city's energy footprint.

  • Researchers have found that city and suburban streets have become less connected in ways that favor car travel over more climate-friendly options.
  • Grid-like streets are better for walking, cycling and public transportation, while cul-de-sacs, three-way-intersections and gated communities with "one-way-out" routes encourage vehicle use.

What's happening: City planners are encouraging denser street grids in new communities and redevelopments, or they could place a tax on three-way-intersections, or a "cul-de-tax," to change street design habits, researchers Christopher Barrington-Leigh and Adam Millard-Ball write in a recent study published in the Proceedings of the National Academy of Sciences.

  • In Denmark, bicycle and pedestrian paths are being integrated into communities to connect otherwise disconnected streets.
  • National planning guidance in the United Kingdom called for connected streets over dead-end designs.
  • After a 2001 earthquake in Bhuj, India, planners tried to interconnect all cul-de-sacs to avoid dead-end streets being blocked by fallen rubble.

Go deeper:

Go deeper

Mike Allen, author of AM
34 mins ago - Energy & Environment

Laurene Powell Jobs' $3.5 billion climate campaign

Laurene Powell Jobs, president of Emerson Collective, is investing $3.5 billion in her new climate-action group, the Waverley Street Foundation — all to be spent in 10 years, as a way to show urgency on the issue.

  • Then the group will sunset.

The big picture: The foundation "will focus on initiatives and ideas that will aid underserved communities who are most impacted by climate change," an official tells Axios.

R. Kelly found guilty of racketeering and sex trafficking

Photo: Nuccio DiNuzzo/Getty Images

Singer R. Kelly on Monday was found guilty of racketeering and eight counts of violating an anti-sex trafficking law, the New York Times reports.

Why it matters: Sexual misconduct allegations have surrounded R. Kelly's career, including a child sexual abuse image case in 2008 where he was acquitted. Multiple other victims have come forward to speak about the abuse in recent years.

German elections: After close result, jockeying to replace Merkel begins

Data: Preliminary results from German Federal Returning Officer; Chart: Sara Wise/Axios

Germany’s Social Democrats (SPD) pulled off a come-from-behind victory in Sunday’s elections, 10 seats ahead of the Christian Democrats (CDU), which failed to finish top for the first time in 16 years.

State of play: SPD leader Olaf Scholz has said he’ll seek to form a government, but so too has Armin Laschet, Chancellor Angela Merkel’s successor as CDU leader.

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