Hi George, thanks for your fast reaction! Super. I was referring to other navigation-systems, so you just can check if what I'm asking is reasonable. The Traverse des Jardins is a short street that begins in the south at the inverted y-split and stops in the north at the more or less crooked t-split. ( the real Chemin du Derroc starts only there at the left (west).
The very small alley, where traverse des Jardins is now written is just a back-alley with no name. 
Just as an example you can look at google maps. Not to copy but just to understand te right situation. Thanks a lot man!