A curb cut (U.S.), curb ramp, depressed curb,dropped kerb (UK), pram ramp, or kerb ramp (Australia) is a solid (usually concrete) ramp graded down from the top surface of a sidewalk to the surface of an adjoining street. It is designed primarily for pedestrian usage and commonly found in urban areas where pedestrian activity is expected. In comparison with a conventional curb (finished at a right angle 4–6 inches (10–15 cm) above the street surface) a curb cut is finished at an intermediate gradient that connects both surfaces, sometimes with tactile paving.
![]() | The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject.(March 2015) |
Historically speaking, footpaths were finished at right angles to the street surface with conventional stepped curb treatments. Their introduction to help people pushing prams dates back at least as far as the 1930s in the UK. [1]
Kalamazoo, Michigan installed curb cuts in the 1940s as a pilot project introduced by veteran and lawyer Jack H. Fischer to aid employment of veterans with disabilities. [2] [3] A major project in Berkeley, California led by the grassroots Center for Independent Living led to curb cuts up and down Telegraph and Shattuck Avenues creating an extensive path of travel. [4] Following this, the value of curb cuts was promoted more strongly and their installation was often made on a voluntary basis by municipal authorities and developers.
Curb cuts in Western countries have been mandated by legislation such as the Americans with Disabilities Act of 1990 (ADA) in the United States (which requires that curb cuts be present on all sidewalks) or the Disability Discrimination Act 1992 in Australia. The legislative requirements in some jurisdictions have been increased from the original requirements in recent times, to the point where existing treatments can now fail to meet the most recent design requirements. [5]
When a broader population than just the disabled, for whom the curb cut requirement was legislated, use them, this new convenience can be seen as a positive externality. [6]
![]() | This section may require copy editing for grammar, style, cohesion, tone, or spelling.(November 2024) |
Curb cuts placed at street intersections allow wheelchair users, baby carriages, toddlers on tricycles etc., to move onto or off of a sidewalk with less difficulty. Many curb cuts also feature tactile paving, a pattern of circular bumps that indicate to visually impaired pedestrians that they are about to enter a roadway. [7]
Curb cuts also benefit pedestrians and people using a walker or cane or wheelchair, pushing a stroller, a pram or a buggy for babies, pushing or pulling a cart or hand truck, or walking next to a bicycle; as well as anyone riding a bicycle, roller skates, or a skateboard.
A wider curb cut is also useful for motor vehicles to enter a driveway or parking lot on the other side of a sidewalk. In the UK this is commonly referred to as a 'crossover'.[ citation needed ]
Smaller curb cuts may be used along streets, parking areas or sidewalks in the manner of a water bar; by redirecting water from traditional drainage ways to stormwater BMPs which allow infiltration, such as a grassed area or rain garden.[ citation needed ]
Accessible curb cuts transition from the low side of a curb to the high side (usually 15 cm or 5.9 in change in level). Accessible curb ramps are a minimum of 1 metre (3.28 ft) wide. They are sloped no greater than 1:12 (8.33%), which means that for every 12 cm (4.7 in) of horizontal distance, they rise no more than one centimetre (3⁄8 in). The concrete curb ramp is sometimes scored with grooves, the texture of which may serve as a warning to vision-impaired persons of the transition to the street. Such grooves also allow for traction and water runoff, and may be stained a color that significantly contrasts with the adjacent concrete. If a curb ramp contains flared sides, they are usually no greater than 1:10 (10%) slope.[ citation needed ]
Pram ramps in Australia are designed according to Australian Standard AS 1428: Design for access and mobility. [8]
Proponents of universal design often point to the curb cut effect as an example when raising awareness of the benefits of this design philosophy. [9]
A sidewalk, pavement, footpath in Australia, India, New Zealand and Ireland, or footway is a path along the side of a road. Usually constructed of concrete, pavers, brick, stone, or asphalt, it is designed for pedestrians. A sidewalk is normally higher than the roadway, and separated from it by a kerb. There may also be a planted strip between the sidewalk and the roadway and between the roadway and the adjacent land.
A pedestrian crossing is a place designated for pedestrians to cross a road, street or avenue. The term "pedestrian crossing" is also used in the Vienna and Geneva Conventions, both of which pertain to road signs and road traffic.
Pavement(s) or paving may refer to:
A street is a public thoroughfare in a built environment. It is a public parcel of land adjoining buildings in an urban context, on which people may freely assemble, interact, and move about. A street can be as simple as a level patch of dirt, but is more often paved with a hard, durable surface such as tarmac, concrete, cobblestone or brick. Portions may also be smoothed with asphalt, embedded with rails, or otherwise prepared to accommodate non-pedestrian traffic.
A curb extension is a traffic calming measure which widens the sidewalk for a short distance. This reduces the crossing distance and allows pedestrians and drivers to see each other when parked vehicles would otherwise block visibility. The practice of banning car parking near intersections is referred to as daylighting the intersection.
Cobblestone is a natural building material based on cobble-sized stones, and is used for pavement roads, streets, and buildings. Setts, also called Belgian blocks, are often referred to as "cobbles", although a sett is distinct from a cobblestone by being quarried and shaped into a regular form, while cobblestones are naturally occurring forms less uniform in size.
Various methods of transport of children have been used in different cultures and times. These methods include baby carriages, infant car seats, portable bassinets (carrycots), strollers (pushchairs), slings, backpacks, baskets and bicycle carriers.
Roncesvalles Avenue is a north–south minor arterial street in Toronto, Ontario, Canada. It begins at the intersection of Queen Street West, King Street West and the Queensway running north to Dundas Street West. At its southern starting point, King Street West traffic continues northward onto Roncesvalles Avenue unless the traffic turns east or west onto Queen Street West or the Queensway. At its northern end point, traffic continues onto Dundas Street, which is essentially a straight-line northern extension of Roncesvalles.
A wheelchair ramp is an inclined plane installed in addition to or instead of stairs. Ramps permit wheelchair users, as well as people pushing strollers, carts, or other wheeled objects, to more easily access a building, or navigate between areas of different height. Ramps for accessibility may predate the wheelchair and are found in ancient Greece.
A pedestrian separation structure is any structure that removes pedestrians from a roadway, street or railway track. This creates a road junction where vehicles and pedestrians do not interact.
A mobility scooter is an electric personal transporter used as mobility aid for people with physical impairment, mostly auxiliary to a powered wheelchair but configured like a motorscooter. When motorized they function as micromobility devices and are commonly referred to as a powered vehicle/scooter, or electric scooter. Non-motorized mobility scooters are less common, but are intended for the estimated 60% of wheelchair users who have at least some use of their legs. Whilst leg issues are commonly assumed to be the reason for using scooters, the vehicles are used by those with a wide range of conditions from spinal injuries to neurological disorders.
A curb or kerb is the edge where a raised sidewalk or road median/central reservation meets a street or other roadway.
A Kassel kerb is a design of kerb that features a concave-section that allows for an easier alignment for buses. The kerb was first introduced in the German city of Kassel for the low-floor tram system but has since been adopted for use at traffic stops. Kassel kerbs can be part of a bus stop kerb, designed for low-floor buses that serve an elevated bus stop platform.
Tactile paving is a system of textured ground surface indicators found at roadsides, by and on stairs, and on railway station platforms, to assist pedestrians who are visually impaired.
Accessibility for people with disabilities on the Toronto Transit Commission (TTC) system is incomplete but improving. Most of the Toronto subway system was built before wheelchair access was a requirement under the Ontarians with Disabilities Act (ODA). However, all subway stations built since 1996 are equipped with elevators, and elevators have been installed in 45 stations built before 1996. Over three-quarters of Toronto's subway stations are accessible. The original plan was to make all stations accessible by 2025; however, a few stations might not be accessible until 2026.
Bicycle law in the United States is the law of the United States that regulates the use of bicycles. Although bicycle law is a relatively new specialty within the law, first appearing in the late 1980s, its roots date back to the 1880s and 1890s, when cyclists were using the courts to assert a legal right to use the roads. In 1895, George B. Clementson, an American attorney, wrote The Road Rights and Liabilities of Wheelmen, the first book on bicycle law, in which he discussed the seminal cases of the 1880s and 1890s, which were financed by Albert Pope of Columbia Bicycles, and through which cyclists gained the right to the road.
A wheelchair is a mobilized form of chair using 2 or more wheels, a footrest, and an armrest usually cushioned. It is used when walking is difficult or impossible to do due to illnesses, injury, disabilities, or age-related health conditions. Wheelchairs provide mobility, postural support, and freedom to those who cannot walk or have difficulty walking, enabling them to move around, participate in everyday activities, and live life on their own terms. []
A shared-use path, mixed-use path or multi-use pathway is a path which is "designed to accommodate the movement of pedestrians and cyclists". Examples of shared-use paths include sidewalks designated as shared-use, bridleways and rail trails. A shared-use path typically has a surface that is asphalt, concrete or firmly packed crushed aggregate. Shared-use paths differ from cycle tracks and cycle paths in that shared-use paths are designed to include pedestrians even if the primary anticipated users are cyclists.
The James D. Pfluger Pedestrian and Bicycle Bridge is a shared use bridge for pedestrians and cyclists spanning Lady Bird Lake in downtown Austin, Texas. Opened in 2001, the bridge connects the north and south sides of the Ann and Roy Butler Hike-and-Bike Trail and features an unusual "double curve" design. The bridge runs parallel to the Lamar Boulevard Bridge, which carries road traffic across the lake roughly 200 feet (61 m) to the west.
The United Kingdom has specific types of pedestrian crossing.
...mandated by the 1990 Americans with Disabilities Act, soon provided a path for all kinds of street users, like kids on bicycles, parents with strollers, and senior citizens with shopping carts. Pedestrians are drawn to using curb cuts, and a street corner would look odd without them. It's a story of how changes made for small groups wind up having positive, unforeseen externalities.