It’s raining outside today, and while my son watched a little television, I set up some wood pieces to make roads.
Untreated pine wood pieces, wide enough for 2 match box cars (I asked at Bunnings for wood safe for children to handle as some wood is treated with nasty chemicals)
Matchbox (or other small) cars
This activity took a few moments to set up. I drew road lines on the wood with permanent marker and placed a few on the floor, and one between two boxes for a bridge.
Quick and easy.