In Response to MGL CH 87 Acts of 1996
Bicycle and Pedestrian Accomodation
MassHighway Engineering Directive E-97-004 dated 07/01/97
from Chief Engineer Thomas F. Broderick
Project design engineers shall use sound engineering practice in making
reasonable provisions to accommodate bicycles and pedestrians in project
designs. This generally includes continuous paths of travel with smooth
surfaces and without obstructions or impediments.
Benchmark for Bicycle Accommodation
The Massachusetts Highway department benchmark for reasonable bicycle
accommodation is to provide a continuous paved usable shoulder adjacent
to the outside travel lane in each direction on roadways where bicycles
are legally permitted. The desirable width of the outside travel lane
plus the paved usable should[er] (curb lane) is at least 5.0 meters (plus
0.5 meter "guardrail" offset). When this width cannot be
reasonably accommodated, the minimum width of the outside travel lane
plus the paved usable shoulder (curb lane) for the accommodation of
bicycles is 4.5 meters (plus 0.5 meter offset). For roadways with low
speeds of less than 45 mph (85th percentile speeds) combined with low
volumes of less than 2000 AADT, the minimum roadway widths as defined in
Chapter 8 of the Highway Design Manual may be used to conform with bicycle
accommodation. This directive does not preclude the use of additional
AASHTO design guidance for bicycle accommodation.
Benchmark for Pedestrian Accommodation
The Massachusetts Highway Department benchmark for pedestrian accommodation
is to provide at least one continuous paved surface or sidewalk along all
roadways where pedestrian access is legally permitted. Sidewalks must be
in full conformance with AAB/ADA regulations.
Documentation of Non-Conformance
The designer shall determine as soon as possible in the design and prior
to 25% design approval, whether it is feasible to accommodate bicycles
and pedestrians as outlined herein. If accommodation is not attainable,
the designer must document why such accommodation was not reasonably
attainable. Such documentation shall be forwarded for review to the
Bicycle/Pedestrian Coordinator designated to carry out this Directive.
Criteria to Consider When Determining Reasonable Accommodation
- Impacts on Environmental Quality including: Wetlands, Floodplain,
Storm Water, Trees, Park Land, Rare and Endangered Species Habitat
- Projects on Scenic Roads
- Archeological or Historical areas
- Compatibility with existing and future adjacent roadway sections
- "Footprint" Bridge projects
- Existing parallel facilities
- Conflicts with on-street parking
- Compability with surrounding area
- Public Safety
- Public support
- Impacts on existing Rights of Way
[Bike/Ped Access Law]