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4 <br /> Chapter 5.General Site and Building Elements ICC A117.1-2009 <br /> aisles are marked with lines, the width measure- 503.3 Access Aisle. Passenger loading zones shall <br /> ments of access aisles and adjacent parking spaces have an adjacent access aisle complying with Section <br /> shall be made from the centerline of the markings. 503.3. <br /> EXCEPTION: Where access aisles or parking 503.3.1 Location. Access aisles shall adjoin an <br /> spaces are not adjacent to another access aisle or accessible route. Access aisles shall not overlap the <br /> parking space, measurements shall be permitted vehicular way. <br /> to include the full width of the line defining the 503.3.2 Width. Access aisles serving vehicle pull-up <br /> access aisle or parking space. spaces shall be 60 inches (1525 mm) minimum in <br /> 502.5 Floor Surfaces. Parking spaces and access width. <br /> aisles shall comply with Section 302 and have surface 503.3.3 Length.Access aisles shall be 20 feet(6095 <br /> slopes not steeper than 1:48. Access aisles shall be at mm) minimum in length. <br /> the same level as the parking spaces they serve. <br /> 502.6 Vertical Clearance. A vertical clearance u <br /> E a . 503.3.4 Marking. Access aisles shall be marked so <br /> rr '2490 mm) minimum shall be provided at the dol- as to discourage parking in them. <br /> lowing locations: 503.4 Floor Surfaces. Vehicle pull-up spaces and <br /> 1. Parking spaces for vans. access aisles serving them shall comply with Section <br /> 302 and shall have slopes not steeper than 1:48. <br /> 2. The access aisles serving parking spaces for Access aisles shall be at the same level as the vehicle <br /> vans. pull-up space they serve. <br /> 3. The vehicular routes serving parking spaces for 503.5 Vertical Clearance. A vertical clearance of 114 <br /> vans. inches (2895 mm) minimum shall be provided at the fol- <br /> 502.7 Identification.Where accessible parking spaces lowing locations: <br /> are required to be identified by signs, the signs shall 1. Vehicle pull-up spaces; <br /> include the International Symbol of Accessibility coin- 2. The access aisles serving vehicle pull-up spaces; <br /> plying with Section 703.6.3.1. Signs identifying van <br /> parking spaces shall contain the designation "van 3. A vehicular route from an entrance to the pas- <br /> accessible." Such signs shall be 60 inches (1525 mm) senger loading zone, and; <br /> minimum above the floor of the parking space, mea- 4. A vehicular route from the passenger loading <br /> sured to the bottom of the sign. zone to a vehicular exit serving vehicle pull-up <br /> 502.8 Relationship to Accessible Routes. Parking spaces. <br /> spaces and access aisles shall be designed so that cars <br /> and vans, when parked, cannot obstruct the required 504 Stairways <br /> clear width of adjacent accessible routes. 504.1 General.Accessible stairs shall comply with Sec- <br /> 503 Passenger Loading Zones tion 504. <br /> 504.2 Treads and Risers. All steps on a flight of stairs <br /> 503.1 General. Accessible passenger loading zones shall have uniform riser height and uniform tread depth. <br /> shall comply with Section 503. Risers shall be 4 inches (100 mm) minimum and 7 <br /> 503.2 Vehicle Pull-up Space Size. Passenger loading inches (180 mm) maximum in height. Treads shall be <br /> zones shall provide a vehicular pull-up space 96 inches 11 inches(280 mm) minimum in depth. <br /> (2440 mm) minimum in width and 20 feet (6095 mm) 504.3 Open Risers. Open risers shall not be permitted. <br /> minimum in length. <br /> 20 feet min <br /> A <br /> 6095 <br /> ti <br /> A "•,'t474,,i,.::-.:Afe, 74P60 min <br /> �e 1525 <br /> area to be marked , <br /> Nom: '"' 't , fr ,a• ,x 1 " \ <br /> - 1 \ !Q -1 <br /> \ (j <br /> ,,--1) <br /> FIG.503.3 <br /> PASSENGER LOADING ZONE ACCESS AISLE <br /> 40 <br /> / i <br />