is a vertical bump in a roadway with heights typically ranging between 8 and 10 centimeters and are a class of traffic calming devices that use to slow motor-vehicle traffic in order to improve safety conditions. Speed Bump on road can come with different markings and colors.

Unlike the modeling task what should you do if the export is not available

there are places in map where the data that we get from the TV is missing because of overlapping roads.

WHAT ARE THE 3 WAY CONNECTION ?

Sometimes cracks in the concrete can be detected as LM/RE splines, we have to make sure these are not actual splines, once this is confirmed these can be deleted.

occasionally the sidewalk lowers to the road level, and sometime identifies it as LM solid, once we verify this is the case we made delete this spline as it is irrelevant

CWs and SLs sometimes can be detected as LMs and need  to be deleted

Along certain parking spots it may be marked with solid\dash markings, these marking are not road marking but parking marking hence we will place a "Semnet_parking" polygon on top of that area, make sure you cover the entirety LM that defines the parking

This is the easier option, here we can see the a clear outline of the island on the export

This is a more spread out type of island detection here making out the general shape of the island is harder, we can try to make put the shape using the satellite Image

sometimes there are cases where more then one RE will be detected because of actual features in the road ( like poles or concrete bumps ) usually its in places with bike lanes

Under this topic you have 3 editing options

Short lines going in the same direction as a part of one row, is typically painted white or yellow.