Laserfiche WebLink
installed to face the intersection and be parallel to the direction of the <br />crosswalk it serves. <br />R306.2.1.2 Medians and Islands. Accessible pedestrian signals located <br />in medians and islands shall be 1.5 m (5.0 ft) minimum from other <br />accessible pedestrian signals. <br />R306.2.2 Reach and Clear Floor or Ground Space. Accessible pedestrian <br />pushbuttons shall be located within a reach range complying with R404. A clear <br />floor or ground space complying with R402 shall be provided at the pushbutton <br />and shall connect to or overlap the pedestrian access route. <br />R306.2.3 Audible Walk Indication. The audible indication of the WALK <br />interval shall be by tone or speech message. <br />R306.2.3.1 Tones. Tones shall consist of multiple frequencies with a <br />dominant component at 880 Hz. The duration of the tone shall be 0.15 s <br />and shall repeat at intervals of 0.15 s. <br />Advisory R306.2.3.1 Tones. Many new accessible pedestrian signal installations in the <br />US use speech messages, which are perceived as being more user-friendly than tones. <br />However, such messages may not be intelligible under high -ambient -noise conditions or <br />to non-English speakers. Electronic tones are more universal and unambiguous. Section <br />4E. 06 of the MUTCD specifies content of speech messages. <br />R306.2.3.2 Volume. Tone or voice volume measured at 92 cm (3.0 ft) <br />from the pedestrian signal device shall be 2 dB minimum and 5 dB <br />maximum above ambient noise level in standard operation and shall be <br />responsive to ambient noise level changes. <br />Advisory R306.2.3.2 Volume. Where additional volume or beaconing features are <br />available on pedestrian activation, they will momentarily exceed volume limits. <br />R306.3 Pedestrian Pushbuttons. Pedestrian pushbuttons shall comply with R306.3. <br />R306.3.1 Operation. Pedestrian pushbuttons shall comply with R405.4. <br />R306.3.2 Pushbutton Locator Tone. Pedestrian pushbuttons shall incorporate a <br />locator tone at the pushbutton. Pushbutton locator tone volume measured at 92 <br />cm (3.0 ft) from the pushbutton shall be 2 dB minimum and 5 dB maximum <br />above ambient noise level and shall be responsive to ambient noise level changes. <br />The duration of the locator tone shall be 0.15 s maximum and shall repeat at <br />intervals of one second. The locator tone shall operate during the DON'T WALK <br />and flashing DON'T WALK intervals only and shall be deactivated when the <br />pedestrian signal is not operative. <br />42 <br />