skip to main content
skip to newscasts

Friday, July 5, 2024

Public News Service Logo
facebook instagram linkedin reddit youtube twitter
view newscast page
play newscast audioPlay

MI empowers disadvantaged communities for clean energy; Biden high-stakes interview with ABC's George Stephanopoulos set to broadcast tonight; Report: National project helps MN push back against deforestation; NE crisis response system needs bolstering,

view newscast page
play newscast audioPlay

President Biden rushes to reassure a weary party and public, Pennsylvania lawmakers want to prevent state-supported schools divesting from Israel and abortion-related ballot measures could be on the ballot in a dozen states.

view newscast page
play newscast audioPlay

A new wildfire map shows where folks are most at risk of losing a home nationwide, rural North Carolina groups promote supportive and affordable housing for those in substance-abuse recovery, and bookmobiles are rolling across rural California.

Could narrower traffic lanes help reduce harmful emissions?

play audio
Play

Friday, November 17, 2023   

Wisconsin's largest city has seen recent debate over highway expansion plans amid environmental concerns, and a new study suggested for similar projects, some effects could be limited if narrower traffic lanes are prioritized.

The expansion plan in Milwaukee involves a stretch of Interstate 94. Research from the Johns Hopkins Bloomberg School of Public Health was more focused on urban roadways with speed limits of around 35 miles an hour.

Shima Hamidi, director of the Center for Climate-Smart Transportation and assistant professor of public health at Johns Hopkins University who helped lead the study, said switching from lane widths between 11 and 12 feet, long the norm, down to 9 feet helps reduce traffic collisions. She pointed out it also leaves more room for options not involving vehicles.

"It will help many people to switch from driving to other modes of transportation, such as biking and walking," Hamidi explained. "Which could result in greenhouse gas emission reductions from transportation."

The study contended with narrower lanes, people will not feel compelled to drive as fast and will be more alert. Hamidi acknowledged while the approach might slow traffic, past research shows minimal effects, which means the changes would not cancel out environmental benefits. Other studies have shown expanding the number of lanes, in general, does not reduce congestion.

Hamidi also noted transportation planners and engineers have expressed liability concerns, but she emphasized her team's study is one of the first to give cities and states firm data, on the traffic safety side, showing skinnier lanes are more effective.

"We are getting more and more interest from transportation planners, mostly at the local level," Hamidi observed. "Cities are eager and interested to really see how this could be implemented."

Hamidi added the next steps involve more research to quantify some of the other impacts, including air pollution. The study issued this month analyzed nearly 1,200 streets in seven cities around the
U.S. The findings come amid a gradual increase in pedestrian fatalities over the past decade.


get more stories like this via email

more stories
Alabama community colleges will receive an additional $35 million in state funding for 2025. (Adobe Stock)

play sound

Alabama's universities and community colleges will receive increased funding for 2025. The state's universities are set to get a 7% boost equivalent …


Social Issues

play sound

Data show older voters are an influential demographic in Wyoming elections and a new series of videos asks candidates questions specific to the group…

Environment

play sound

New Mexicans affected by recent wildfires and subsequent flooding may be eligible for Disaster Supplemental Nutritional Program benefits. The …


A Michigan Healthy Climate Plan recommendation is to meet a goal of 100% clean energy no later than 2050. (pinkrabbit/Adobe Stock)

Environment

play sound

The effects of climate change often hit Michigan's most vulnerable communities hardest, prompting state environmental organizations to take action…

Health and Wellness

play sound

Nevada is among a handful of states to add a surcharge to all phone bills intended to help support the state's 988 mental health emergency hotline…

Farmworkers laboring in extreme heat are at risk of heatstroke or even death. (F Armstrong Photo/Adobe Stock)

play sound

The Biden administration is proposing rules to protect workers from extreme heat. The Occupational Safety and Health Administration said its …

Environment

play sound

Deforestation remains a concern in the U.S. but success stories are emerging and Minnesota advocates said new achievements bode well for all …

Health and Wellness

play sound

As the summer sun blazes, especially in the Sunshine State, it is easy to get caught up in the fun and excitement of the season. But according to …

 

Phone: 303.448.9105 Toll Free: 888.891.9416 Fax: 208.247.1830 Your trusted member- and audience-supported news source since 1996 Copyright © 2021