Please keep the crossings there if possible. Crossings should be added for any public/alley/commercial service road crossing, or any private driveway crossing with at least 4 flats served. Crossing segments are used to quantify the probability of conflict (number of cars crossing the sidewalk for an average day). When no crossing segment is added, it is impossible to estimate the crossing width and/or the probability of conflicts between pedestrian and cars. So here is the rules we use elsewhere in Montreal region when updating existing data:

Public road/school driveway/alley: add a crossing segment

Commercial service road/driveway (to a shop or industrial building): add a crossing segment

Residential driveway with at least 5 flats/5 parking places served: add a crossing segment

Residential driveway with less than 5 flats served/individual house: no crossing