Pedestrian deaths have surged on U.S. roads in recent years, and they are climbing again.

Pedestrian deaths hit a 40-year high in 2021, and numbers for the first half of 2022 were up about 5% over the same period in 2021, according to a new Governors Highway Safety Association (GHSA) analysis.

It cites a variety of contributors, including heavier vehicles that are more likely to injure or kill people on foot. Roads, meanwhile, are designed to prioritize fast-moving traffic over the slower speeds that are safer for pedestrians, according to the GHSA.

Many parts of the United States lack adequate sidewalks, crosswalks and lighting, the group noted.

In addition, dangerous driving surged at the start of the pandemic and has not abated.