Moving the mouse over one of the alternative itineraries (second or third) in the left hand pane causes that itinerary to be drawn on the map display, but the previous itinerary is not erased. They just pile up. Clicking on one of the itineraries does cause them all to be cleared and only the selected itinerary is drawn.
Seeing this on the embedded page at http://511ny.org/tripplanner/default.aspx
Moving the mouse over one of the alternative itineraries (second or third) in the left hand pane causes that itinerary to be drawn on the map display, but the previous itinerary is not erased. They just pile up. Clicking on one of the itineraries does cause them all to be cleared and only the selected itinerary is drawn.
This happens in Chrome and Firefox under Linux.