LOWER MERION -- Rose Glen Road in Gladwyne is a picturesque winding road running about a mile between Youngsford and Mill Creek roads. The road has a forested view with a handful of beautiful homes and the only driveway leading into Rolling Hill Park. But township officials say there is a hidden danger on the road, and they want to address it. - Advertisement - That danger is that it is unsafe for pedestrians. Still, nearby residents say itâs been used for walking and biking for a long time. That pedestrian use has only increased over the past year as government-ordered pandemic lockdowns have taken hold.