Hi, i named it based on what it is called here, tough it may be not the "true" name (you may correct me).
I went a bit digging to find a more factually based source for that. Found it at the Bayernatlas (mapping portal of the state of bavaria): It was the old offical route of the Bundesstraße until about 1983 (not too long ago there was even an old yellow signpost at the crossing with Ingolstädter Str).
https://atlas.bayern.de/?c=680445,5398875&z=16&r=0&l=atkis,zeitreihe_tk&l_o=1,0.75&l_t=,1983&mid=1

Tough i noticed that i did a mistake on the number: It should have been 16, not 13 (the Bundesstraße this road leads to). My mistake, confused that. I will correct it shortly.