The first instruction for the D.E.P.A.R.T.M.E.N.T. Stage 4 Training Module. A transcript appears below. If you require clarification, please visit the FOR YOUR EARS ONLY information page.

Move along the street in the direction of the upward gradient. It is better to deal with an incline now. Should you need to return to base at speed, a downwards gradient will be of greater aid at that time. 

If you are unclear which direction is up, you may need to work on honing your skills of observance. Consider this carefully, and remember – a well-trained agent may need to trust their instincts when the best path is not the most obvious one. Follow this instruction until you come to a right turn. You’ll know the one.