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Illustration: Sarah Grillo, Rebecca Zisser/Axios

Experts say 5G phone networks will jump-start the smart cities movement — which deploys tech to try to make communities more sustainable and efficient — by tying together traffic, energy, communications, waste disposal, and many other municipal systems.

Why it matters: Smart-city ideas haven't transformed into reality yet for most Americans, but if government and industry get this right, cities could reduce traffic, cut carbon emissions, protect neighborhoods and save money.

How the industry sees it: Wireless providers are touting 5G's high speeds and low latency (delay) as giving the networks an opportunity to knit together elements of urban infrastructure that can't currently connect with one another.

Traffic light reprogramming is one example cited by Sameer Sharma, Intel's general manager for smart cities:

  • Most cities take years to change intersection timings to match changes in traffic patterns.
  • They may have traffic cameras monitoring flow and control systems that could be updated much more often, but no way for the systems to talk to each other.
  • 5G could glue them together and make possible a kind of dynamic traffic control that speeds drivers on their way and helps improve air quality.

Pilot projects have explored novel uses:

  • In San Diego's Gaslamp Quarter, providers worked with the city to test a power-saving system that switched streetlights on and off depending on the presence of traffic.
  • In Portland, Ore., a test rollout of multisensor light poles allows the city to monitor traffic on key corridors to improve safety. The system analyzes images and then discards them, alleviating concerns over privacy and surveillance.

How cities see it: Leaders and policy experts are excited by 5G's potential to improve city services but worry about cost, transitional problems, and fairness.

  • New infrastructure is expensive, and cities need confidence that the systems they install today won't be obsolete (or broken) before the next election.

Go deeper: The race to become "smart cities"

Go deeper

New York AG alleges "significant evidence" of Trump Organization fraud

Combination images of former President Trump and New York State Attorney General Letitia James. Photo: Al Drago/Bloomberg via Getty Images; Scott Heins/Getty Images

New York's attorney general filed a motion Tuesday seeking to compel former President Trump and his two elder children to appear for sworn testimony in her office's civil investigation into the Trump Organization's financial dealings.

Why it matters: Attorney General Letitia James revealed new details in the court filing and a statement on her office's investigation into the Trump Organization's business practices, including a preliminary finding alleging the company used "fraudulent and misleading asset valuations to obtain economic benefits."

4 hours ago - Technology

Ex-N.Y. Post digital chief files lawsuit alleging sexual harassment

Richard B. Levine) (Photo by Richard Levine/Corbis via Getty Images

Former New York Post editor Michelle Gotthelf is suing her former employer, its parent company News Corp. and two editors, alleging she was reprimanded after complaining to senior executives that she was sexually harassed by retired N.Y. Post editor-in-chief Col Allan. The N.Y. Post issued a statement denying any wrongdoing.

Why it matters: "I felt that I owed it to myself and I owed it to the news organization and the people who answered to me," Gotthelf, who was a long time editor at the N.Y. Post, told Axios in an interview.

Updated 4 hours ago - Economy & Business

Airlines warn of flight cancellations amid 5G rollout concerns

Emirates SkyCargo airline Boeing 777F aircraft. Photo: Nicolas Economou/NurPhoto via Getty Images

Emirates and Delta airlines announced Tuesday that the planned rollout of 5G services at certain American airports could affect flights.

Driving the news: AT&T and Verizon announced earlier Tuesday that they would delay this week's scheduled rollout of 5G signals near a limited number of airports due to continued concerns from the aviation industry.