Pictures from last year seems to tell otherwise. North of the stairs there seems to be a paved surface designated to be used for bicycles.

https://api.panoramax.xyz/en/index?focus=pic&map=21.74/48.6214224/7.7608302&pic=099a812b-ac76-47cc-b592-1b1f76d72bc1&seq=9cd57198-0df0-41fe-9386-a83c377a4b44&speed=250&theme=age&users=default&xyz=199.26/-20.50/30