Barry battles Heat Wave & Captain Cold in the street in episode #110 "Revenge of the Rogues".
Oliver rides his motorcycle after Kendra Saunders his taken by Hawkman in episode #208 "Legends of Today".
Tommy talks to Laurel on the phone while walking down the street in episode #113 "Betrayal".
Diggle drops Moira off at a building and then follows her inside in episode #113 "Betrayal".
Roy stops the police convoy carrying Oliver and turns himself in as the Arrow in episode #318 "Public Enemy".
Diggle chases the virus carrier through the street in episode #323 "My Name Is Oliver Queen".
George Usher leaves a restaurant and walks back to his car while being watched by Tooms in episode #103 "Squeeze".
Source: XF Marks the Spot
The SGC surveillance team sits in their van outside the Farrow-Marshall skyscraper in episode #907 "Ex Deus Machina".
From episode #100.
Mon-El attempts to be charitable and is captured by Cadmus for his trouble in episode #206 "Changing".
Mon-El and Guardian stop the mutated Dr. Jones from killing Rand O'Reilly and other bystanders until Supergirl can arrive to stop him once and for all in episode #206 "Changing".
Bart attacks Dirk while he and Farah are stuck in traffic in episode #106 "Fix Everything".