An alternate circulation path shall be provided whenever the existing pedestrian access route in the public right-of-way is blocked by construction, alteration, maintenance, or other temporary conditions. The alternate circulation path shall comply with Section X03.1.
Discussion: The removal, even for only a short time, of a pedestrian access route, curb ramp, or pedestrian street crossing may severely limit or totally preclude a person with a disability from navigating in the public right-of-way. It may also preclude access to buildings, facilities, or sites on adjacent properties. Jurisdictions and their contractors should ensure that an alternate circulation path that can be located visually and audibly is available to pedestrians during construction, parades, and other temporary conditions that block pedestrian passage through the public right-of-way. The committee considered but did not include an exception to the required pedestrian access route width permitting an alternate circulation path to be as narrow as 36 inches in order to provide usable minimum passage by a construction site, along a public sidewalk narrowed by construction, or borrowed temporarily from a roadway parking lane.
Where possible, the alternate circulation path shall parallel the disrupted pedestrian access route, on the same side of the street.
Discussion: A poorly placed alternate circulation path may require an individual to take a lengthy or circuitous route to bypass a site in order to reach a desired destination. The alternate path should be convenient and accessible for all users and should minimize or avoid extra travel distance.
X03.1.3 Alternate circulation path protection.
The alternate circulation path shall have no protrusions up to a height of eighty inches, including scaffolding and scaffolding braces. Where the alternate circulation path is adjacent to potentially hazardous conditions, the path shall be protected with a barricade consistent with Section X03.2.
Construction sites in or adjacent to the pedestrian access route shall be protected with a barricade in accordance with Section X03.2.
X03.2.2 Barricade locations.
Barricades shall be installed in the following locations:
EXCEPTION. Barricades are not required where the construction site or alternate circulation path is enclosed with a solid, cane-detectable fence or wall. Where protection is provided using a solid fence or wall, a painted or applied horizontal 6-inch (150mm) minimum stripe in 70 percent contrast shall be provided at between 42 inches (1065mm) and 60 inches (1525mm) above the adjacent grade.
Isometric view shows toe and protective rails at required heights.
Isometric view shows a continuous toe rail and protective railing blocking
the leading end and sides of a curb ramp.
X03.2.3 Barricade specifications.
The construction barricade at the alternate circulation path shall be continuous, stable and non-flexible. It shall have a solid toe rail with its top edge at 6 inches (150mm) minimum in height and its bottom edge no higher than 1-1/2 inches (38mm) above the adjacent surface. It shall have a continuous railing mounted at a top height of 36 to 42 inches (915-1065mm)with diagonal stripes having at least 70 percent contrast. The top rail shall be parallel to the toe rail and be situated to allow pedestrians to use the rail as a guide for their hand(s) for wayfinding purposes. No barricade support member shall protrude more than 4 inches beyond the toe rail into the alternate circulation path.
Discussion: Construction within or adjacent to the public right-of-way is particularly hazardous to people with visual impairments or mobility impairments if the site is not adequately protected with a barrier or barricade. In particular, people who use canes may not detect a tape or a series of widely spaced traffic cones placed around a construction site. Such markings do not provide sufficient cues to enable a blind pedestrian to anticipate a hazard, nor do they provide an edge along which to travel around an obstruction. Barriers should be detectable, with edge protection and a railing, and be distinguishable, with contrasting graphics for individuals with low vision. Barricades that are supported by "feet", such as inverted "T" supports, can be a tripping hazard if the feet extend too far into the alternate circulation path. Additionally, the barricade is intended to protect individuals with visual and mobility impairments from precipitous drop-offs into construction sites such as trenches. Caution tape does not provide an adequate barricade and cannot be used to delineate the alternate circulation path. The committee discussed the desirability of allowing a barricade that public entities already use for roadway construction in compliance with the MUTCD. However, the primary focus of the markings required here is to ensure the minimum 70 percent contrast is attained so that the barrier will be highly visible to pedestrians.
When an alternate circulation path or a barricade is created in the public right-of-way, a warning shall be provided and comply with Section X03.3.
X03.3.2 Warning locations.
Warning shall be located at both the near side and the far side of the intersection preceding a temporarily completely blocked pedestrian way. Signage located at the intersection preceding the blocked way shall comply with Section X02.3.8.
Advisory. Where directional signage or warnings are provided, they should be located to minimize backtracking, especially if there is no safe refuge at a corner under construction. In some cases, this could mean locating a warning or sign at the beginning of a route, not just at the inaccessible site, such as the construction site. The committee recommends that signage indicating the temporary closure of public sidewalks during construction include information accessible to pedestrians who are blind. Broadcast signage or flashing beacon lights accompanied by an audible tone are examples of media that could be effectively used to alert people to construction zones. It is important that the tone be distinguishable from other common indicators such as back-up tones on trucks or locator tones at signalized intersections. Other forms of audible signage may also be very useful at these locations.
Discussion: Visually impaired pedestrians cannot be expected to see blocked sidewalks on the far side of the street, or read signs pointing to alternate pedestrian routes.
Research need: The committee recommends that the National Committee on Uniform Traffic Control Devices (NCUTCD) support research and development necessary to develop and include in MUTCD guidance on audible and/or Braille systems and devices approved for accessible signage indicating temporary closure of public sidewalks.
Temporary facilities in the public right-of-way shall conform to the accessibility requirements of permanent facilities. Temporary facilities shall not decrease the accessibility of the pedestrian access route as required by Section X02.1.1.
Advisory: Temporary facilities in the public right-of-way include, but are not limited to, parade bleachers, review stands, and similar amenities, regardless of the length of time for which they are placed.
X03.4.2.1 Single-user temporary and portable toilet facilities.
Where only one single-user toilet facility is provided in a public right-of-way, it shall be accessible in accordance with proposed ADAAG Section 603 and shall provide a minimum of 48 inches clearance in front of the water closet.
Discussion: People with disabilities and people who are among the aging population use electric scooters more often in the outdoor environment than they do in the indoor environment. The clearance of 48 inches in front of the toilet is needed to provide extra space required for people who use scooters and the larger wheelchairs in the outdoor environment and allows for an even longer clearance when the toilet is approached diagonally. This 48-inch clearance in front of the toilet is in addition to the clear floor or ground space required in front of the door to the toilet enclosure. This requirement is well established in current standards in the California Building Code.
X03.4.2.2 Multiple single-user portable toilet facilities. Where multiple single-user temporary and portable toilet rooms are clustered at a single location in a public right-of-way, 25 percent per cluster, but not less than one toilet unit for each use at each cluster, shall comply with proposed ADAAG Section 603 and shall provide a minimum of 48 inches clearance in front of the water closet.
Where unisex toilet facilities are used, 25 percent but not less than one unit at each cluster shall comply with proposed ADAAG Section 603 and shall provide a minimum of 48 inches clearance in front of the water closet.
Discussion: The requirement that 25 percent of temporary and portable toilet facilities be accessible recognizes that a minimum of one accessible toilet in a cluster is inadequate for the outdoor environment. In addition, in the outdoor environment maintenance is more difficult and breakdowns due to overuse and/or vandalism occur more frequently than in the indoor environment. The requirement for 25 percent accessible toilets will help to ensure that an accessible toilet is available.
X03.4.2.3 Multiple-user temporary and portable toilet facilities. . Where a single facility containing fixtures for simultaneous use by multiple users is provided in a public right-of-way, plumbing fixtures and accessories shall comply with Section X02.3.4.
X03.4.3 Non-fixed street furnishings.
Non-fixed street furnishings such as depositories, vending machines, newspaper vending machines, change machines, mailboxes, temporary kiosks, stands and trash receptacles placed in the public right-of-way shall not be placed so as to reduce the pedestrian access route. Non-fixed street furnishings shall comply with Section X02.2.
EXCEPTION: The clear floor space required to use depositories, vending machines, change machines, mailboxes, and similar pedestrian amenities shall be permitted to overlap the pedestrian access route a maximum of 24 inches (610mm).
Discussion: Non-fixed items such as trash receptacles can be just as much of a barrier as a permanently fixed item and can prevent passage in the public right-of-way. Although the non-fixed items themselves are not covered by ADAAG, their location should be stipulated so as not to interfere with the clear width of the pedestrian access route. It is recognized, however that the clear floor space required to use the non-fixed items may overlap the pedestrian route, so long as the encroachment is limited to 24 inches, ensuring that at least 36 inches of the route is not blocked.
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