Barry confronts and captures Shawna Baez in a tunnel filled with construction equipment in episode 1x12 "Crazy for You".
Carly pulls the van over while the police drive past searching for Andrew Graham in episode 3x08 "Archive".
Helena follows the second van supposedly containing her father but finds out it is a police ambush in episode 1x17 "The Huntress Returns".
Peter and Fauxlivia chase the shapeshifter down a tunnel and cause his car to crash in episode 3x04 "Do Shapeshifters Dream of Electric Sheep?".