Replying to Hitting Urban with two People

So all the hills in southern Michigan have closed down due to the weather. Forunately, me and a friend found a couple rails with big snowbanks next to them. We want to try and make the most of it while winter lasts but are having a hard time fiquring out what to use for speed. A bungees out of the question because no one else is interested in hitting urban at our town so we'd need a way to get speed on our own. Has anyone used ladders for speed? Any other suggestions?