Chapter 7F. Grade-Separated Crossings
Section 7F.01 Function
Option:
Grade-separated crossings may be used to physically separate the
crossing of school pedestrian traffic and vehicular flow.
Section 7F.02 Types of Grade-Separated Crossings
Option:
Grade-separated crossings may be either overpasses over the highway
or underpasses under the highway.
Guidance:
The design should follow the guidelines given in the published policies
of the American Association of State Highway and Transportation
Officials, such as "A Policy on Geometric Design of Highways
and Streets" (see Section
1A.11).
Support:
Experience has shown that overpasses are more satisfactory than
underpasses for pedestrian crossings, as overpasses are easier to
maintain and supervise.
Section 7F.03 Criteria for Use of Grade-Separated Crossings
Guidance:
If use of the grade separation will be less convenient to pedestrians
than an at-grade crossing, barriers or supervision should be considered
to assure a satisfactory level of use.
