We are investigating a serious-injury collision that occurred yesterday afternoon in the southwest community of Upper Mount Royal. in the left lane, approaching Colborne Crescent S.W. At the same time, a man in his 90s, who was using a mobility scooter, was crossing Colborne Crescent northbound in an unmarked crosswalk. We continue to work with our partners at The City of Calgary to implement the Safer Mobility Plan with the common goal of Vision Zero – mobility free of fatalities and major injuries. Tips can also be submitted anonymously to Crime Stoppers through any of the following methods:TALK: 1-800-222-8477TYPE: www.calgarycrimestoppers.orgAPP: P3 TipsCase # CA26040896/5225