Map: Luftwaffe Bombing Map: Liverpool and Area, 1941

The many railway lines are marked very clearly on this map.

Why do you think these are marked so clearly on a map made for a bombing raid ? Discuss which of the following you think could have been the main reasons for this.

• they could be followed to help you find your way when flying to the target?
• the attackers would to try to hit with their bombs, as they would not be easy to repair?
• the crew could walk along them if you got shot down?