2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 100 PRELIMINARY SECTION 104.31 — ACCESSIBLE PEDESTRIAN MAINTENANCE OF TRAFFIC
104.31.01 Description
Provide and maintain an accessible pedestrian route, to the “maximum extent feasible”, throughout the project’s limits. When an existing pedestrian access route within the public right of way is blocked by construction, alteration, or maintenance activity, an alternate accessible pedestrian route shall be provided. The phrase, “maximum extent feasible”, applies in areas where the nature of an existing facility or site conditions makes it virtually impossible to comply fully with applicable accessibility standards through a planned alteration. In these circumstances, the alternate accessible pedestrian route shall provide the maximum physical accessibility that is feasible, or a design waiver must be approved by SHA’s Office of Highway Development.
104.31.02 Materials
Not applicable.
104.31.03 Construction
Consider the following items when addressing accessible pedestrian maintenance of traffic:
a.All pedestrians, including persons with disabilities, shall be provided with a reasonably safe, convenient and accessible path that replicates as much as practicable the existing pedestrian facilities.
b.The width of the existing pedestrian facility should be maintained if practical. When it is not possible to maintain a minimum width of 60 in. throughout the entire length of the pedestrian route, a minimum width of 36 in. shall be provided with 60 in. x 60 in. passing zones at least every 200 ft, to allow individuals in wheelchairs to pass.
c.Traffic control devices and other construction materials and features shall not intrude into the usable width of the sidewalk, temporary pathway or other pedestrian facility.
d.Signs and other devices mounted lower than 7 ft above the temporary pedestrian pathway shall not project more than 4 in. into accessible pedestrian route.
104.31 Accessible Pedestrian Maintenance of Traffic
e.A smooth, continuous hard surface shall be provided throughout the entire length and width of the pedestrian route throughout construction. There shall be no curbs or vertical elevation changes greater than 1/4 in. in grade or terrain that could cause tripping or be a barrier to wheelchair use. Vertical elevation differences between 1/4 in. and 1/2 in. shall be beveled at a maximum 2:1 slope.
f.When channelization is used to delineate a pedestrian pathway, a continuous detectable edging should be provided throughout the length of the facility such that pedestrians using a white cane can follow it. Edging should protrude at least 6 in. above the surface of the sidewalk or pathway with the bottom of the edging a maximum of 2.5 in. above the surface.
g.Temporary ramps shall be provided when an alternate pedestrian route crosses a curb, and no permanent ramps are in place. The width of the ramp shall be a minimum of 36 in. and the slope of the ramp shall not exceed 12:1. Temporary detectable warning mats must be installed at street crossings and signalized entrances.
h.When possible, an accessible pedestrian route shall be provided on the same side of the street as the disrupted route. When it is not feasible to provide a same-side accessible pedestrian route an accessible pedestrian detour route shall be provided.
i.Information regarding closed pedestrian routes, alternate crossings, and sign and signal information shall be communicated to pedestrians with visual disabilities by providing devices such as audible information devices, accessible pedestrian signals or barriers and channelizing devices that are detectable to the pedestrians traveling with the aid of a white cane or who have low vision.
j.It is desirable that pedestrians cross to the opposite side of the roadway at intersections rather than mid-block. Appropriate signing shall be placed at the intersections.
k.Access to transit stops shall be provided and maintained at all times.
104.31.04 Measurement and Payment
Unless otherwise specified, Accessible Pedestrian Maintenance of Traffic will not be measured but the cost will be incidental to the Lump Sum item for Maintenance of Traffic. The payment will be full compensation for all materials, labor, equipment, tools, and incidentals necessary to complete the work. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
104.32 Static Automated Speed Enforcement
CATEGORY 100 PRELIMINARY SECTION 104.32 — STATIC AUTOMATED SPEED ENFORCEMENT
104.32.01 Description
Coordinate with the Administration and its Automated Speed Enforcement Contractor for Automated Speed Enforcement (ASE) in the work zone. Provide work zone signage, workers present trailer(s), speed display trailer(s), and protection devices to accommodate ASE in the work zone. Contact the Office of Traffic and Safety Traffic Development and Support Division (OOTS TDSD) ASE program representative (410-787-5860) at least two weeks prior to fabricating and installing ASE signs to determine exact locations for the ASE unit(s), ASE signs, workers present trailer(s), and speed display trailer(s).
104.32.02 Materials
Temporary Concrete Traffic Barrier (TCB) for Maintenance of Traffic 104.04.02 Temporary Traffic Signs (TTS) 104.08.02 Temporary Traffic Barrier End Treatments 104.09.02 Temporary Crash Cushion Sand Filled Plastic Barrels (SFPB) 104.10.02 Drums for Maintenance of Traffic 104.12.02 Cones for Maintenance of Traffic 104.14.02 Protection Vehicle (PV) Section 104.23 Speed Display Trailer (SDT) 104.28.02 Aggregate for Maintenance of Traffic 105.02 Reflectorization 950.03 Workers Present Trailer (WPT) 104.24.02
104.32.03 Construction
104.32.03 01 General. Refer to Standard No. MD 104.06-26A. Static Automated Speed
Enforcement (ASE) will be used in the work zone to enhance safety for the workers and traveling public. The Administration will provide a mobile ASE system, including speed enforcement equipment, ASE unit(s), and labor for ASE system operation. The Contractor will provide (furnish, install, relocate and remove) all of the applicable ASE signing, the workers present trailer(s), the speed display trailer(s), and protection devices as required. 2025 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS
Source: Maryland Standard Specifications for Construction and Materials, 2025 Edition. Pages 231–232 of 1,113.