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Researchers Find that to Achieve Long-term Sustainability, Urban Systems Must Tackle Social Justice and Equity
Inclusivity and understanding past policies and their effects on underserved and marginalized communities must be part of urban planning, design, and public policy efforts for cities.
Joe F. Bozeman III, the lead author and an assistant professor in Georgia Tech’s School of Civil and Environmental Engineering. He is also the director of Tech’s Social Equity & Environmental Engineering Lab.
« Researchers Find that to Achieve Long-term Sustainability, Urban Systems Must Tackle Social Justice and Equity
Newswise — Inclusivity and understanding past policies and their effects on underserved and marginalized communities must be part of urban planning, design, and public policy efforts for cities.
An international coalition of researchers — led by Georgia Tech — have determined that advancements and innovations in urban research and design must incorporate serious analysis and collaborations with scientists, public policy experts, local leaders, and citizens. To address environmental issues and infrastructure challenges cities face, the coalition identified three core focus areas with research priorities for long-term urban sustainability and viability. Those focus areas should be components of any urban planning, design, and sustainability initiative.
The researchers found that the core focus areas included social justice and equity, circularity, and a concept called “digital twins.” The team — which consists of 13 co-authors and scholars based in the U.S., Asia, and Europe — also provided guidance and future research directions for how to address these focus areas. They detailed their findings in the Journal of Industrial Ecology, published in January 2023.
“Climate change has certainly increased the amount and intensity of extreme weather events and because of that, it makes our decision making today critical to the manner in which our economy and our day to day lives can operate,” said Joe F. Bozeman III, the lead author and an assistant professor in Georgia Tech’s School of Civil and Environmental Engineering. He is also the director of Tech’s Social Equity & Environmental Engineering Lab. “Our quality of life can be negatively affected if we don’t make good decisions today.”
Three core areas of focus to achieve urban sustainability
The researchers’ first core focus area, justice and equity, addresses innovations and trends that disproportionately benefit middle and high-income communities. Trends like IoT, “smart cities,” and the urban “green movement” are part of a broader push by cities to become more sustainable and resilient. But communities of color and low-income neighborhoods — the same areas often home to environmental contaminations, infrastructure challenges, and other hazards — have often been overlooked.
The researchers’ findings showed a consistent trend with marginalized communities across several countries, including Canada, the Netherlands, India, and South Africa. They call for mandatory equity analyses which incorporate the experiences and perspectives of these marginalized communities, and, more importantly, ensure members of those communities are actively engaged in decision-making processes.
“Planning, professional, and community stakeholders,” the researchers write in the paper, “should recognize that working together gets cities closer to harmonizing the technological and social dimensions of sustainability.”
The second focus area, circularity, addresses resource consumption of staple commodities including food, water, and energy; the waste and emissions they generate; and the opportunities to increase conservation of those resources by boosting efficiencies.
“What we mean by circularity is basic reuse, remanufacturing, and recycling efforts across the entire urban system — which not only includes cities and under resourced areas within those cities — but also rural communities that supply and take resources from those city hubs,” Bozeman said. The idea is aligned with the circular economy concept which addresses the need to move away from the resource-wasteful and unsustainable cycle of taking, making, and throwing away.
Instead, the researchers argue, cities should look for ways to improve efficiency and maximize local resource use. That has potential benefits not only for urban areas, but rural communities, too. One example, Bozeman said, is the Lifecycle Building Center in Atlanta. It takes old building supplies and sells them locally for reuse.
“By doing that, they’re at the beginning stages of creating an economic system, a regional engine where we share resources between cities and rural areas,” he said. “We can start creating an economic framework, not only where both sides can make money and get what they need, but something that can actually turn into a sustainable economic engine without having to rely on another state or another country’s import or export economic pressures.”
To strengthen circularity and make it more robust, the researchers call for more expansive metrics beyond measuring recycling rates and zero waste efforts, to include other parts of the supply chain that may yield new ideas and solutions.
The third focus area, digital twins, addresses the development of automated technologies in smart buildings and infrastructure, such as traffic lights to respond to weather and other environmental factors.
“Let’s say there’s a heavy rain event and that the rainwater is being stored into retainment,” said Bozeman. “An automated system can open another valve where we can store that water into a secondary support system, so there’s less flooding, and that can happen automatically, if we utilize the concept of digital twins.”
Creating a new urban planning model
The research came about as part of the mission of the Sustainable Urban Systems Section of the International Society for Industrial Ecology, which aims to be a conduit for scientists, engineers, policymakers, and others who want to marry environmental concerns and economic activity. Bozeman is a board member of the Sustainable Urban Systems Section.
“In that role, part of we do is set a vision and foundation for how other researchers should operate within the city and urban system space,” he said.
For urban sustainability, engineers and policy makers must come to the table and make collective decisions around social justice and equity, circularity, and the digital twins concepts.
“I think we’re at a really critical decision point when it comes to engineers and others being able to do work that is forward looking and human sensitive,” said Bozeman. “Good decision making involves addressing social justice and equity and understanding its root causes, which will enable cities to create solutions that integrate cultural dynamics.”
CITATION: Joe F. Bozeman III, Shauhrat S. Chopra, Philip James, Sajjad Muhammad, Hua Cai, Kangkang Tong, Maya Carrasquillo, Harold Rickenbacker, Destenie Nock, Weslynne Ashton, Oliver Heidrich, Sybil Derrible, Melissa Bilec. “Three research priorities for just and sustainable urban systems: Now is the time to refocus.” (Journal of Industrial Ecology, January 2023)
About Georgia Institute of Technology
The Georgia Institute of Technology, or Georgia Tech, is a public research university developing leaders who advance technology and improve the human condition. The Institute offers business, computing, design, engineering, liberal arts, and sciences degrees. Its nearly 44,000 students representing 50 states and 149 countries, study at the main campus in Atlanta, at campuses in France and China, and through distance and online learning. As a leading technological university, Georgia Tech is an engine of economic development for Georgia, the Southeast, and the nation, conducting more than $1 billion in research annually for government, industry, and society.
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Urbanism
LA Metro’s D Line Extension Phase 1 Officially Opens, Bringing Subway Service to Mid-Wilshire and Beverly Hills
LA Metro’s D Line Extension: LA Metro officially opens Phase 1 of the D Line Subway Extension, connecting Downtown Los Angeles, Mid-Wilshire, and Beverly Hills with three new underground stations.
The future of transportation in Los Angeles has officially arrived.
LA Metro’s D Line Extension Phase 1 Officially Opens
The Los Angeles County Metropolitan Transportation Authority (Metro) officially opened Section 1 of the long-awaited D Line Subway Extension on May 8, 2026, expanding underground rail service westward through the historic Mid-Wilshire corridor and into Beverly Hills.
The 3.92-mile extension is one of Metro’s most ambitious transit infrastructure projects and marks a major milestone in Los Angeles public transportation. The new section extends subway service beyond the current Wilshire/Western station in Koreatown and introduces three new underground stations:
- Wilshire/La Brea
- Wilshire/Fairfax
- Wilshire/La Cienega
The expansion is part of Metro’s larger “Twenty-Eight by ’28” initiative designed to improve mobility across the region ahead of the 2028 Olympic and Paralympic Games.
Downtown Los Angeles to Beverly Hills in About 20 Minutes
With the extension now open, riders can travel from Union Station in Downtown Los Angeles to Beverly Hills in approximately 20 minutes with no transfers required.
The D Line extension is expected to significantly improve travel along the heavily congested Wilshire Boulevard corridor, offering commuters, visitors and residents a faster and more reliable alternative to driving.
“Traveling through Mid-Wilshire to experience the culture, cuisine and commerce across diverse neighborhoods will be easier, faster and more accessible,” said Fernando Dutra, Metro Board Chair and City of Whittier Council Member.
Metro CEO Stephanie Wiggins also highlighted the importance of the project in connecting Angelenos to some of the city’s most iconic destinations.
“Angelenos and visitors alike will love the extended service from Downtown Los Angeles to Beverly Hills, delivering greater access to the iconic and culturally diverse communities, institutions and destinations that define the deep history along Wilshire Boulevard,” Wiggins said.
New Stations Connect Riders to Cultural Landmarks
Wilshire/La Brea Station
Located near Hancock Park and the western edge of Koreatown, the station provides access to cultural and entertainment destinations including:
- Korean Cultural Center
- Marciano Art Foundation
- Ebell Theater
- Popular restaurants including Republique and Sycamore Kitchen
Wilshire/Fairfax Station
Known as the heart of Museum Row, this station serves some of Los Angeles’ most recognizable cultural institutions and attractions, including:
- Los Angeles County Museum of Art (LACMA)
- Academy Museum of Motion Pictures
- Petersen Automotive Museum
- La Brea Tar Pits
- The Grove
- Original Farmers Market
The station also connects neighborhoods including Little Ethiopia, Park La Brea and the historic Fairfax District.
Wilshire/La Cienega Station
Serving as the eastern gateway to Beverly Hills, the station provides convenient access to Restaurant Row and destinations including the Beverly Center.
A Major Milestone for Los Angeles Transit
The D Line extension has been decades in the making and is widely considered one of the most important transit projects in Los Angeles history.
The project was funded primarily through Measure R, the voter-approved transportation sales tax passed in 2008, along with substantial federal funding support that included:
- $1.25 billion Full Funding Grant Agreement (FFGA)
- $66.4 million supplemental New Starts funding
- $749.3 million TIFIA loan
All three stations feature modern amenities including public artwork, enhanced lighting, cell phone service, bicycle hubs and improved pedestrian access.
Metro officials hope the extension will encourage more residents and visitors to use public transportation while helping reduce roadway congestion ahead of major international events scheduled for Los Angeles later this decade.
What’s Next for the D Line?
Construction is already underway on future phases of the D Line extension.
Phase 2 will continue west into Beverly Hills and Century City, while Phase 3 will eventually extend subway service to UCLA and the West Los Angeles VA campus.
Once completed, the D Line will provide a direct subway connection between Downtown Los Angeles and the Westside, dramatically reshaping mobility across one of Southern California’s busiest corridors.
Learn More
For official project details and station information, visit:
Metro D Line Opening Information
Stay connected with STM Daily News for the latest updates on Los Angeles transportation, Metro expansion projects, infrastructure developments, local news, technology, culture, and more. Visit STM Daily News for breaking stories, in-depth coverage, and exclusive content from across Southern California and beyond.
Last Updated on May 4, 2026 by Daily News Staff
Cinco de Mayo is a holiday that commemorates the Mexican army’s victory over the French Empire at the Battle of Puebla on May 5, 1862. In the United States, the holiday has become a celebration of Mexican-American culture and heritage, often involving parades, parties, and traditional foods such as tacos and margaritas.
How will you celebrate Cinco de Mayo?
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The Knowledge
Metrolink Offers Fare-Free Rides for Earth Day 2026 Across Southern California
Metrolink offers fare-free rides for Earth Day 2026 across Southern California, encouraging sustainable travel and reduced emissions.
Last Updated on April 21, 2026 by Daily News Staff
Metrolink Offers Fare-Free Rides for Earth Day 2026
LOS ANGELES — April 22, 2026 — In a continued push toward sustainable transportation, Metrolink will once again offer systemwide free rides on Earth Day, inviting commuters and travelers to leave their cars behind and explore a cleaner way to move across the region.
A One-Day Opportunity to Ride Free
On Wednesday, April 22, passengers can board any Metrolink train — including the Arrow service — without purchasing a ticket. The initiative is part of the broader celebration of Earth Day, encouraging environmentally conscious travel choices.
The fare-free program is designed to appeal to both regular riders and first-time users, particularly those navigating Southern California’s persistent traffic congestion and rising fuel costs.
Encouraging Sustainable Travel Habits
“Earth Day is a reminder that small changes, like choosing public transit over driving one day a week, can have a meaningful impact on our environment,” said Doug Chaffee, chair of the Metrolink Board.
With gas prices continuing to strain household budgets, the agency hopes the initiative will inspire more residents to consider rail as part of their regular commute.
Regional Connections Expand Access
Metrolink’s Earth Day promotion aligns with similar efforts by other Southern California transit providers. Riders can seamlessly connect to services operated by: LA Metro and the Orange County Transportation Authority, Riverside County Transportation Commission, San Bernardino County Transportation Authority and Ventura County Transportation Commission.
These partnerships extend the reach of fare-free travel across a six-county region, making it easier for riders to explore destinations without relying on personal vehicles.
Service Adjustments and Rider Tips
Passengers should note that trains will operate on a reduced weekday schedule, implemented earlier this spring. Despite the adjustment, all Metrolink lines and station cities remain in service.
For those planning a trip:
- No ticket is required — simply board the train
- Bikes are welcome, with capacity ranging from three bikes per standard car to nine in designated bike cars
- A curated destination guide highlights attractions within walking or biking distance of stations
Environmental and Economic Impact
Metrolink is also promoting its Personal Impact Calculator, a digital tool that allows riders to estimate how switching from driving to rail can reduce greenhouse gas emissions and lower fuel expenses.
A Broader Trend in Public Transit
Fare-free transit days have gained traction nationwide as agencies look to boost ridership and promote sustainability. Southern California’s expansive commuter rail network makes it particularly well-suited for such initiatives, offering a viable alternative to one of the country’s most car-dependent regions.
Bottom Line
Metrolink’s Earth Day promotion is more than a one-day free ride — it’s a strategic effort to shift commuter behavior, reduce environmental impact, and showcase the convenience of regional rail. For Southern Californians, April 22 presents a low-risk opportunity to rethink how they travel.
Source: Metrolink
https://metrolinktrains.com/news/metrolink-goes-fare-free-for-earth-day-on-april-22
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