Advances in technology have made transportation more energy efficient in recent decades, lowering emissions per mile and per unit of freight. But according to a new study, those efficiency gains haven’t been enough to offset the rise in emissions from new transportation demand. To hold transportation emissions steady going forward, the study says, global transportation demand must not continue rising, or we must make a more dramatic shift toward electrification than currently imagined.
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California will let agencies pay for housing to offset increased driving
A new California law gives transportation agencies the option to pay into an affordable housing fund to offset the increased travel demand associated with major road projects. The approach could achieve several goals at once: mitigating emissions from highway expansions, creating a new funding stream for affordable housing, and helping more people live in accessible neighborhoods, reducing their transportation costs.
Webinar: Sidewalk Data For Detailed First- and Last-Mile Access Analysis
Wednesday, July 23, 2025
Walking routes to and from bus stops and transit stations are critical for riders, but sidewalk data can be hard to come by. Washington State DOT is wrapping up a two-year effort to build a unified pedestrian infrastructure dataset that is compatible with OpenStreetMap and geared toward accessibility-forward planning.
2026 Annual Meeting
October 13-14, 2025
SSTI’s 2025 Community of Practice meeting will be held October 13-14 in Sacramento, California. COP meetings focus on peer-to-peer interaction between CEOs of state departments of transportation. These meetings allow attendees to share ideas and learn from one another’s experiences leading state DOTs. The meetings are open to state DOT CEOs and are by-invitation to others.
Resilient infrastructure, responsible development can reduce insurance risk
Carolyn Kousky, founder of Insurance for Good and longtime researcher on climate impacts and insurance markets, told MIP and SSTI widespread insurance protects local economies, as well as lenders and mortgage markets. “As a warming planet increases the risks of weather-related extremes, insurance becomes harder to get and more expensive. The only long-term solution is serious investments in risk reduction and climate adaptation,” Kousky said in an email.
Complex urban streets encourage safer driving
Reducing excessive speeding is one of the most effective ways to improve road safety—especially where people are walking or biking. While lowering speed limits and adding traffic calming measures help, growing research highlights the value of self-explaining streets that give drivers constant cues to slow down.
Pedestrian deaths aren’t accidents, they’re policy failures
Pedestrian deaths are rising faster in the U.S. than in any other high-income country. A decade-long surge, up 50%, has made the U.S. the most dangerous place to walk among 27 peer nations. Many experts view these deaths not as random accidents but as preventable tragedies that reflect deeper policy failures in transportation, infrastructure, and public safety.
Advocates tout financial benefits of green transportation policies
A new network of advocates across seven states is highlighting how transportation policies that are good for the environment offer many other benefits too. The Clean RIDES Network, launched last week, is using recent policy successes in places like Colorado as models that other states can take inspiration from. SSTI is among those advising the group, hoping to steer advocacy toward innovative, achievable policies drawing on years of experience.
State DOTs can remove barriers to attract top talent
By Chris McCahill Hiring and retaining talented staff remains a top concern for state DOT officials and a recurring topic at SSTI’s annual meetings. Whether shifting federal policies disrupt local recruitment or send a flurry …
Cutting transit wait times is key for winning back ridehail users
Nearly all trips taken in some cities by ridehail services, such as Uber or Lyft, could be taken by transit, according to new research. That means the excess traffic those trips create could be prevented, with the right incentives. To encourage people to opt for transit instead of ridehail, transit agencies can pursue strategies to shorten walk and wait times associated with transit.