11.   Her lawsuit charges that Norfolk Southern knew the crossing was sometimes obscured by fog, but took no action to properly warn drivers.

12.   Himelick said General Motors Corp., which owns GM Hughes Electronics, eventually may install the radar detection system in passenger cars to warn drivers of potential collisions.

13.   Last July, the NTSB warned drivers not to chat and drive.

14.   Some cars come with automatic gauges to read the tire pressure, warning the driver if a tire has low pressure.

15.   The compass warns the driver if its readings are being distorted by outside influences such as a nearby metal bridge.

16.   The latter was a volunteer who waved flags to help warn the drivers of oncoming hazards.

17.   The National Highway Transportation and Safety Administration warned drivers the same year about the potential dangers of yakking while navigating.

18.   This technology could develop into accessories that warn drivers if their vehicle is headed for an obstacle or if it starts to drift off the road.

19.   Thousands of trucks and buses are already equipped with primitive versions that warn drivers with beeps or flashing lights when they approach traffic too quickly.

20.   Warren said bridge district workers had erected two signs in each direction Monday warning drivers of the higher fines.