Test plan to calculate the maximum point of breadcrumb trail

I need help with writing test cases. this is NOT an unit test, this is a part of software test plan.

requirements:

1)the breadcrumb trail(the black line) is updating as long as the car is moving from the starting point (home icon) the value for starting point always going to be (0,0) and it won't update it's location. 2) the car reaches to its maximum 7hrs trip which is equal to 25200 points and the map must display it.

I have attached a picture of it here, please look at it.Thank you.enter image description here