Congestion frequently reduces traffic to walking pace.

交通阻塞经常把车流的速度降低得如步行一般缓慢。

《牛津词典》

Toad got down on the step, and as the train slowed down to almost a walking pace, he heard the driver call out, "Now, jump!"

蟾蜍踩下踏板，火车减速至与步行差不多时，他听到司机一声喊：“现在，跳！”

youdao

The other factors were speed of rising from a chair and walking pace.

另一因素是从椅子上升和步行速度的速度。

youdao

The speed limits for the wheelchairs are 4mph on pavements - essentially walking pace - and 8mph on roads.

BBC: Motorised wheelchair

The match descended to walking pace as Rangers sat on their lead and frustrated their hosts when they attacked.

BBC: Dundee United 0-3 Rangers

In Dehradun, for example, a blue haze hangs over streets where vehicles jostle to move even at walking pace.

ECONOMIST: A national head count should show dramatic changes