D.C. Region Traffic Fatalities Are Rising, New TPB Study Shows

Commuters across the Washington region may be driving less than they did before the pandemic, but when crashes happen, they are more likely to be deadly. A Transportation Planning Board update presented at the Feb. 18 meeting found that fatal vehicle crashes have climbed across the Washington, D.C., metro area in recent years, even as total crash counts remain below pre‑pandemic levels. The board's regional safety review, an update to its 2020 study, examined five years of data through 2023 and warned that the pattern of deaths is uneven across neighborhoods.

The TPB's Regional Roadway Safety Study update, which analyzed five years of crash data through 2023, found fatal crashes rose steadily from 2019 to 2023. It also found that the inner suburbs show the highest fatality rate, while the urban core records the highest serious‑injury rate, and pedestrians accounted for roughly 29 percent of traffic fatalities in that window, according to the Metropolitan Washington Council of Governments' Transportation Planning Board presentation.

"Crashes have become more severe," TPB planner Janie Nham told board members, and consultants on the study said "speeding, impaired driving and unbelted driving" remain the region's top behavioral contributors. The study also found that speeding is involved in about 9 percent of crashes overall, but is a factor in roughly 32 percent of fatal crashes and 22 percent of crashes causing serious injuries, as reported by WTOP.

Numbers and recommendations

The TPB's five‑year rolling averages show the region missed its targets: the presentation lists an adopted target of about 253 fatalities versus an actual five‑year average near 363, and a fatality rate target of 0.5881 per 100 million vehicle miles traveled versus an actual 0.8722. Serious injuries were similarly above target, leaving fatalities about 38 percent higher and the serious‑injury rate roughly 29 percent over the goal. The presentation urged several near‑term actions: an enforcement‑coordination meeting, a regional compilation of impaired‑driving best practices, technical assistance for smaller agencies, and a push for more before‑and‑after evaluations to test countermeasures, according to the TPB presentation.

What jurisdictions are trying

Local governments have doubled down on traffic‑calming projects, speed‑limit changes and selective automated traffic enforcement, but officials say funding gaps and political pushback slow broader rollouts. Automated speed and red‑light cameras have shown local benefits: Montgomery County reported about a 39 percent reduction in killed‑or‑seriously‑injured crashes on enforced corridors, and early camera sites in D.C., Alexandria and Fairfax showed measurable drops in injury crashes, as reported by WTOP.

Why the picture is complicated

Even as the five‑year trend through 2023 looks worrying, the TPB deck itself notes fatalities began to decline in 2024, illustrating how year‑to‑year swings can reshape the story. More recent reporting shows traffic deaths fell again in 2025, with The Washington Post reporting an 18 percent regional drop last year and D.C.'s total down from 52 in 2024 to 25 in 2025, underscoring the need for continuous monitoring and quick evaluation of interventions.

TPB members say the takeaway is a blended approach: targeted enforcement where evidence supports it, calmer street design where speeds and geometry drive risk, and better data‑sharing between transportation and policing agencies. The board plans to push technical assistance and evaluations that help jurisdictions test what actually reduces deaths on the region's most dangerous corridors.