1.   Biggio rounded third as J.D. Drew relayed the ball from right field, but he stayed at third after third base coach Matt Galante put up the stop signal.

2.   Current train-control systems can limit speeds or stop a train if an engineer ignores a stop signal.

3.   Investigators concluded that two hours later, he was asleep when he missed a stop signal and smashed head-on into an oncoming Conrail train.

4.   Occasionally, the inserted letter creates a stop signal that truncates the APC protein and sabotages its tumor suppressor role.

5.   Phoenix drivers have developed a reputation for racing through stop signals, said Janet Curtis, regional director for the National Traffic Safety Institute.

6.   At first, medical sources said that one of the train drivers overlooked a stop signal, causing the crash.

7.   But it appears so far that one of the trains might have run a red stop signal, since no technical faults had been found on the line.

8.   Calm amid dizzying traffic chaos, Lima policewoman Miriam Diaz waves over an aging taxi that had sputtered through a stop signal.

9.   He also said no technical faults were found on the line Wednesday, so one of the trains apparently missed a stop signal.

10.   Honking drivers are a menace at traffic lights, where they blow their horns anticipating that the stop signal will change.