BT Šab 7a(15) :אע׳ג דדרסי לה רבים‏ : even though the public walks on it
See the entire entry for drs vb. to tread

BT Šab 7a(15) :כיון דלא מסתגי להו בהדיא‏ : since they cannot walk (in it) directly [i.e. in a straight line]
See the entire entry for sgy#3 vb. to go