In fact, you presented four completely different problems in your question, consisting of two main tasks with two subtasks each.
Task 1: One-Way Street Walk
, , . .
1:
, . , TSP . , , .
Challenge 1B:
Challenge 1A, , , , , . , TSP.
2:
, , , , , . .
2A:
/ . , , . , . , , . , , . , TSP . , .
2B: jaywalking
. , , , . , . , , jaywalking . , , , jaywalking. , TSP , . TSP . . TSP .