Amap with a scale of 1: 24,000 means that

1:24000

the 1 indicates the actual size of one unit.

24000 is the scale units for the one unit of actual size on the map

for example. if its 1 inch =24000 miles, then every inch of map there is, is 24000 miles.

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.