Issue link: https://resources.esri.ca/i/1522200
Figure 13 Road divided by a Median Shoulder Sidewalk Median Centreline Centreline Mapping editors should represent road segments for each carriageway (also referred to as a roadway or an undivided highway) that is separated by a physical barrier (i.e., a median) between its lanes of traffic. Figure 13 shows two different centrelines that represent road segments with opposite traffic flow. In this figure, each centreline represents a carriageway covering multiple lanes of traffic. For lanes (either with the same or opposite traffic flow) not separated by a physical barrier, these are represented as groups of multiple lanes represented by a single road segment for the carriageway's centreline. erefore, roads with medians separating lanes have multiple carriageways. Editors should refer to section 3.3.1 to correctly attribute the address range and direction of traffic flow for the centreline of each road segment representing these carriageways. 3.2.1 Grade Separated Road Crossings Mapping editors should include a road structure (usually a bridge) to represent a road above grade (i.e., above ground level) that crosses another road at a lower grade or at ground level. is is called a grade separated road crossing. In these cases, roads are not segmented where they cross, but editors should segment the above grade road at the end points of the overlapping structure (i.e., the bridge or overpass). 3.2.2 Lanes Divided by Medians Editors should represent lanes separated by a physical median (i.e., a structure that acts as a barrier between two lanes) as individual road segments, as shown in Fig- ure 14. However, editors should ignore solid painted yellow lines as medians, nor should they consider lanes separated by a yellow line as different road segments. Community Road Network Guide to Best Practices v4.0 9