Speech messages might be either directly audible or transmitted, requiring a personal receiver to hear the message. Option: At a mounting height of approximately 3.5 feet, but no more than 4 feet, above the sidewalk. Support: Accessible pedestrian signals shall have an audible walk indication during the walk interval only. The walk interval is intended for pedestrians to start their crossing. 03 Vibrotactile walk indications shall be provided by a tactile arrow on the pushbutton (see Section 4E.12) that vibrates during the walk interval. 12 If pedestrian volumes and characteristics do not require a 7-second walk interval, walk intervals as short as 4 seconds may be used. Do not start The design requirements for a Standard: Specifications regarding the use of Braille or raised print for traffic control devices can be found in the "Americans with Disabilities Act Accessibility Guidelines for Buildings and Facilities (ADAAG)" (see. The Manual on Uniform Traffic Control Devices (MUTCD) recommends the following for A following distance greater than three seconds is When pedestrian signal heads are used, a WALKING PERSON (symbolizing WALK) signal indication shall be displayed only when pedestrians are permitted to leave the curb or shoulder. 01 At intersections equipped with pedestrian signal heads, the pedestrian signal indications shall be displayed except when the vehicular traffic control signal is being operated in the flashing mode. Support: WebPedestrian Clearance Interval Also generally known as Flashing Dont Walk (FDW). Pushbutton locator tones shall have a duration of 0.15 seconds or less, and shall repeat at 1-second intervals. Where the pedestrian clearance time is sufficient only for crossing from the curb or shoulder to a median of sufficient width for pedestrians to wait, median-mounted pedestrian signals (with pedestrian detectors if actuated operation is used) shall be provided (see, Where median-mounted pedestrian signals and detectors are provided, the use of accessible pedestrian signals (see, During the transition into preemption, the walk interval and the pedestrian change interval may be shortened or omitted as described in. WebThe pedestrian dont walk indicator, which is sometimes combined with a countdown timer, means that a pedestrian must not begin crossing the road. A flashing DONT WALK pedestrian signal indicates that (1 point) the signal light will soon be yellow. 09 Because some technology includes the countdown pedestrian signal logic in a separate timing device that is independent of the timing in the traffic signal controller, care should be exercised by the engineer when timing changes are made to pedestrian change intervals. These signal indications consist of the illuminated symbols of a WALKING PERSON (symbolizing WALK) and an UPRAISED HAND (symbolizing DONT WALK). 05 Not all crosswalks at an intersection need audible beaconing; audible beaconing can actually cause confusion if used at all crosswalks at some intersections. Vibrotactile walk indications shall be provided by a tactile arrow on the pushbutton (see. 08 Pedestrian signal head indications should be conspicuous and recognizable to pedestrians at all distances from the beginning of the controlled crosswalk to a point 10 feet from the end of the controlled crosswalk during both day and night. Unobstructed and adjacent to a level all-weather surface to provide access from a wheelchair; Where there is an all-weather surface, a wheelchair accessible route from the pushbutton to the ramp; Between the edge of the crosswalk line (extended) farthest from the center of the intersection and the side of a curb ramp (if present), but not greater than 5 feet from said crosswalk line; Between 1.5 and 6 feet from the edge of the curb, shoulder, or pavement; With the face of the pushbutton parallel to the crosswalk to be used; and. 03 When pedestrian signal heads are used, a WALKING PERSON (symbolizing WALK) signal indication shall be displayed only when pedestrians are permitted to leave the curb or shoulder. The name of the street to be crossed may also be provided in accessible format, such as Braille or raised print. 11 Except as provided in Paragraph 12, the walk interval should be at least 7 seconds in length so that pedestrians will have adequate opportunity to leave the curb or shoulder before the pedestrian clearance time begins. The displayed period of each flash shall be a minimum of 1/2 and a maximum of 2/3 of the total flash cycle. These provisions also position pushbutton poles in optimal locations for installation of accessible pedestrian signals (see Sections 4E.09 through 4E.13). The animated eyes symbol shall be at least 12 inches wide with each eye having a width of at least 5 inches and a height of at least 2.5 inches. 09 For crosswalks where the pedestrian enters the crosswalk more than 100 feet from the pedestrian signal head indications, the symbols should be at least 9 inches high. Countdown displays shall not be used during the walk interval or during the red clearance interval of a concurrent vehicular phase. ", Speech walk messages that are used at intersections having exclusive pedestrian phasing shall be patterned after the model: "Walk sign is on for all crossings.". Where there is an island that allows unsignalized right turns across a crosswalk between the island and the sidewalk. 14 The total of the walk interval and pedestrian clearance time should be sufficient to allow a pedestrian crossing in the crosswalk who left the pedestrian detector (or, if no pedestrian detector is present, a location 6 feet from the face of the curb or from the edge of the pavement) at the beginning of the WALKING PERSON (symbolizing WALK) signal indication to travel at a walking speed of 3 feet per second to the far side of the traveled way being crossed or to the median if a two-stage pedestrian crossing sequence is used. Standard: If used, a pilot light or other means of indication installed with a pedestrian pushbutton shall not be illuminated until actuation. PEDESTRIAN SIGNALS 12 Specifications regarding the use of Braille or raised print for traffic control devices can be found in the "Americans with Disabilities Act Accessibility Guidelines for Buildings and Facilities (ADAAG)" (see Section 1A.11). The clearance interval is based on the street width divided by 4 feet per second walking time. WebThe walk signal indicates that pedestrians may cross the street, while the dont walk signal indicates that pedestrians must wait. The sum of the time of the pedestrian change interval and the buffer interval shall not be less than the calculated pedestrian clearance time (see Paragraphs 7 through 16). The louder locator tone comes from an additional speaker that is aimed at the center of the crosswalk and that is mounted on a pedestrian signal head. The animated eyes symbol shall be illuminated at the start of the walk interval and shall terminate at the end of the walk interval. If information on intersection signalization or geometry is also given, it shall follow the intersection identification information. Guidance: 08 If audible beaconing is used, the volume of the pushbutton locator tone during the pedestrian change interval of the called pedestrian phase shall be increased and operated in one of the following ways: Option: Audible beaconing is not appropriate at locations with channelized turns or split phasing, because of the possibility of confusion. As your flexibility increases, so will your ability to be safe. Where countdown pedestrian signals are used, the countdown shall always be displayed simultaneously with the flashing UPRAISED HAND (symbolizing DONT WALK) signal indication displayed for that crosswalk. Pedestrian signal heads used at crosswalks where the pedestrian change interval is 7 seconds or less may include a pedestrian change interval countdown display in order to inform pedestrians of the number of seconds remaining in the pedestrian change interval. However, "WAIT" (vs "DON'T WALK") hasn't been used on new pedestrian signals for 30 years, and most instances of "WALK" were replaced with the walking icon (and "DON'T WALK" with the hand signalling "stop") 10-20 years ago. Pedestrian control signals. 08 Audible tone walk indications shall repeat at eight to ten ticks per second. 15 If speech walk messages are used, pedestrians have to know the names of the streets that they are crossing in order for the speech walk messages to be unambiguous. The pedestrian clearance time is intended to allow pedestrians who started crossing during the walk interval to complete their crossing. 01 Pedestrian signal heads shall be used in conjunction with vehicular traffic control signals under any of the following conditions: Guidance: 02 Passive detection devices register the presence of a pedestrian in a position indicative of a desire to cross, without requiring the pedestrian to push a button. Pushbutton locator tones shall be deactivated when the traffic control signal is operating in a flashing mode. Speech pushbutton information messages should not be used to provide landmark information or to inform pedestrians with visual disabilities about detours or temporary traffic control situations. 04 If pedestrian pushbuttons are used, they should be capable of easy activation and conveniently located near each end of the crosswalks. Standard Highway Signs and Markings (SHSM) BookDesign Details, Interpretations 24 Accessible pedestrian signals that provide speech walk messages may provide similar messages in languages other than English, if needed, except for the terms "walk sign" and "wait.". They have a pushbutton locator tone and tactile arrow, and can include audible beaconing and other special features. 13 If the pedestrian clearance time is sufficient only to cross from the curb or shoulder to a median of sufficient width for pedestrians to wait and the signals are pedestrian actuated, an additional pedestrian detector shall be provided in the median. If speech walk messages are used to communicate the walk interval, they shall provide a clear message that the walk interval is in effect, as well as to which crossing it applies. A flashing WALKING PERSON (symbolizing WALK) signal indication has no meaning and shall not be used. Automatic volume adjustment in response to ambient traffic sound level shall be provided up to a maximum volume of 100 dBA. 16 Where the pedestrian clearance time is sufficient only for crossing from the curb or shoulder to a median of sufficient width for pedestrians to wait, median-mounted pedestrian signals (with pedestrian detectors if actuated operation is used) shall be provided (see Sections 4E.08 and 4E.09) and signing such as the R10-3d sign (see Section 2B.52) shall be provided to notify pedestrians to cross only to the median to await the next WALKING PERSON (symbolizing WALK) signal indication. If the pedestrian clearance time is sufficient only to cross from the curb or shoulder to a median of sufficient width for pedestrians to wait and the signals are pedestrian actuated, an additional pedestrian detector shall be provided in the median. ", Option: An indication warning pedestrians that the walk indication has ended and the dont walk indication will begin at the end of the pedestrian clearance interval. 06 When used, accessible pedestrian signals shall be used in combination with pedestrian signal timing. Support: Guidance: Research indicates that a rapid tick tone for each crossing coming from accessible pedestrian signal devices on separated poles located close to each crosswalk provides unambiguous information to pedestrians who are blind or visually impaired. WebWhenever pedestrian control signals exhibiting the words "Walk" or the walking person symbol or "Don't Walk" or the hand symbol are operating, the signals shall indicate as 11 An animated eyes symbol may be added to a pedestrian signal head in order to prompt pedestrians to look for vehicles in the intersection during the time that the WALKING PERSON (symbolizing WALK) signal indication is displayed. A steady UPRAISED HAND (symbolizing DONT WALK) signal indication means that a pedestrian shall not enter the roadway in the direction of the signal indication. If you have entered the Potential demand for accessible pedestrian signals; A request for accessible pedestrian signals; Traffic volumes during times when pedestrians might be present, including periods of low traffic volumes or high turn-on-red volumes; The complexity of traffic signal phasing (such as split phases, protected turn phases, leading pedestrian intervals, and exclusive pedestrian phases); and, A speech walk message for the WALKING PERSON (symbolizing WALK) indication, and. If pedestrian volumes and characteristics do not require a 7-second walk interval, walk intervals as short as 4 seconds may be used. The existing environment is often not sufficient to provide the information that pedestrians who have visual disabilities need to cross a roadway at a signalized location. Some passive detection devices are capable of tracking the progress of a pedestrian as the pedestrian crosses the roadway for the purpose of extending or shortening the duration of certain pedestrian timing intervals. 10 Accessible pedestrian signals are typically integrated into the pedestrian detector (pushbutton), so the audible tones and/or messages come from the pushbutton housing. Research indicates that a rapid tick tone for each crossing coming from accessible pedestrian signal devices on separated poles located close to each crosswalk provides unambiguous information to pedestrians who are blind or visually impaired.
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