Edge of Pavment

  • Edge of Pavement at Sidewalk

Wheelchair Parking Stalls

Wheelchair Parking Stall Signs and Post

No Parking

Wheelchair Ramps - Curb Ramps

Handicap Parking Stalls in Parking Lot

0-inch Curb

  • 0-inch Curb Height

Grading Handicap Parking Stalls

Wheelchair Ramps - Van Accessible

Wheelchair Ramps - Van Accessible - Parallel Parking

  • ADA Ramp for Parallel Parking - City of Las Vegas
  • ADA Ramp for Parallel Parking Detail
  • ADA Ramp for Parallel Parking Section

Parking Spaces/Stalls Dimensions

Parking Aisle

  • “14. Parking aisle length shall not exceed 400 feet without a break for circulation.” Title 30.60.50
  • Clark County Parking Aisle Max Length 400 ft

Parallel Parking

Parallel Parking with Bike Lane

Parking - Width of Aisle

Perpendicular (90 degree) Parking

On-street Parking

  • Maintenance
    • Wheel stops/curb (parking blocks) - not to be placed for on-street parking as it causes issues with tripping hazard, street sweeping and snow plow removal.
  • MUTCD Section 3B.18 Parking Space Markings
      • The middle example shows the parking spaces marked with a short vertical white line to mark the side of the space and a short horizontal white line crossing it to mark each end of the space. The width of these white lines is shown as a dimension of 4 to 6 inches, and the distance from the outside edge of the horizontal arm to the outside edge of the vertical arm is shown as a dimension of 12 inches. A leader arrow points to one of these white cross markings from a note stating “Extension enables driver to see limits of stall.” The top of the topmost parking space is shown marked with a white “T,” and the bottom of the bottommost parking space in the row is shown marked with an inverted white “T.” At the top of the figure, the NO PARKING ZONE is shown extending from the south edge of the crosswalk to the north edge of the topmost parking space, a dimension labeled as “30 ft MIN. on approach to signal per UVC.” The topmost parking space is shown as a dimension of 20 ft long, typical for end space. The parking space below it is shown as a dimension of 22 to 26 ft.
    • “Marking of parking space boundaries encourages more orderly and efficient use of parking spaces where parking turnover is substantial. Parking space markings tend to prevent encroachment into fire hydrant zones, bus stops, loading zones, approaches to intersections, curb ramps, and clearance spaces for islands and other zones where parking is restricted. Typical parking space markings are shown in Figure 3B-17.”
    • Figure 1-0 MUTCD Typical Parking Space Markings
    • Figure 1-0 MUTCD Wheelchair Pavement Markings
    • Figure 1-0 MUTCD Typical Lane-Use, Lane-Reduction, and Wrong-Way Arrows for Pavement Markings
  • Idaho Falls
    • Figure 1-0 Idaho Falls - On Street Parking
  • Reno Nevada
    • Parking Space Markings
      • Figure 1-0 City of Reno - Parking Space Markings
  • Oregon DOT
  • Arlington County, Virginia
    • On street parking prohibited within 20 ft of an intersection and 15 ft on either side of a fire hydrant
    • Figure 1-0 Typical On-Street Parking Lane Dimensions
  • Chester County Planning Commission
    • On-street parking is most commonly associated with urban or village landscapes and is often metered as a revenue generator as part of a community's parking management program. On-street parking spaces are typically included in the design of the roadway within which they are located and also referred to as 'parallel' parking. Standard dimensions for on-street parallel parking spaces are 8 feet wide by 22 feet long and placed at least 50 feet from any intersection.
    • On-street angled parking is less common and often associated with historic or central business districts with lesser traffic volumes where it also serves as a traffic calming effect. These installations require much more space within the road right-of-way than parallel parking but offer the opportunity to create more stalls within the same length.
    • Back-in angled on-street parking has recently been installed in the Borough of Pottstown. This installation on East High Street converted two westbound travel lanes and on-street parallel parking into one westbound lane, one bike lane and back-in angled parking within the same available space. Installed in 2003, this concept “has helped revitalize the downtown by slowing traffic, providing more parking spaces adjacent to stores, encouraging bicycling, and making it easier for pedestrians to cross the street.”
  • On-Street Parking at Downtown Summerlin

Diagonal Parking

  • “Diagonal Parking on Public Streets. Requirements for consideration 1) diagonal or perpendicular on-street parking is common in area; 2) existing activities have no feasible possibility of accommodating demand by obtaining adequate parking by off-street parking and parallel curb parking; 3) a hold harmless agreement is prepared and executed by the proponent of the parking, and indicate that the diagonal parking may be required to be removed at the discretion of the Ada County Highway District.” (ACHD Policy Manual - Traffic Engineering 5100-24)

Longitudinal Pavement Markings

Crosswalk Markings

Intersection Radius

Fence and Sight Obstructions

Curb Extensions (Bulb-outs)

  • “Curb extensions (also called bulb-outs) extend the sidewalk into the parking lane to narrow the roadway and provide additional pedestrian space at key locations; they can be used at corners and at mid-block. Curb extensions enhance pedestrian safety by increasing pedestrian visibility, shortening crossing distances, slowing turning vehicles, and visually narrowing the roadway.” (San Francisco Better Streets - Curb Extensions)
  • “Before reducing the width of the proposed bulb-out, consider modifications to land striping across the entire roadway to provide for the above-listed clearances. Since blub-outs are often expensive to construct, they should be sufficiently wide to maximize their benefit. Bulb-outs less than 4 feet in width may not be cost-effective solution as compared to other potential interventions. Curb extensions should not encroach on cyclists' space. Where bike lanes use a painted inside edge, the bike lane should be painted continuously as the bike lane passes the curb extension, and the bulb-out should be set back so that the gutter does not extend into the bike lane. On lower-speed and volume streets where bikes can travel in mixed flow with vehicles, wider curb extensions may be appropriate, but care should be taken not to force cyclists to merge unexpectedly with faster moving cars at the end of the block. If bulb-outs extend beyond the limit of parked cars, additional efforts should be made to ensure their visibility.” (Street Sweeping at Curb Extensions)
  • “Curb extensions should return to the prevailing curb line as sharply as possible to maximize useable space and minimize parking loss, per the following guidelines: Standard return: Standard bulb-outs should be designed with an inner/outer curb radius of 20 ft and 10 ft, sometimes reduced to 15 ft and 10 ft, to enable street sweeping machinery to sweep the entire curbline.” (Street Sweeping at Curb Extensions)

Dale Riedesel Bulb Out Design

  • Figure 1-0 Idaho Transportation Department - Intersection Main & Alder St

Intersection Pavement Markings

Intersection Crosswalk Markings

  • MUTCD Section 3B.17 Typical Types of Crosswalk Markings
    • “When crosswalk lines are used, they shall consist of solid white lines that mark the crosswalk. They shall be not less than 150 mm (6 in) nor greater than 600 mm (24 in) in width.”
    • “Marked crosswalks should not be less than 1.8 m (6 ft) wide.”
    • Figure 1-0 Uniform Standard Drawings - Clark County Area - Crosswalk Markings - Type II
    • “Stop lines should be used to indicate the point behind which vehicles are required to stop in compliance with a traffic control signal.”
    • Have stop line/bar minimum 4 ft behind the crosswalk, see CCAUSD DWG NO 254 - Crosswalk Markings - Type I
      • Figure 1-0 Uniform Standard Drawings - Clark County Area - Crosswalk Markings - Type I
  • Extend back of curb (BOC) lines into the intersection, then offset 3 feet towards the PC/PT. Chamfer the corner if needed to keep the crosswalk pavement markings a minimum 4 ft from wheelchair ramp.
  • Figure 1-0 Uniform Standard Drawings - Clark County Area - Crosswalk Markings - Type II

Stop Line

  • “If used, stop and yield lines should be placed a minimum of 4 feet in advanced of the nearest crosswalk line at controlled intersections,…” MUTCD Part 3 Markings - Section 3B.16 Stop and Yield Lines
    • “Design Notes: F. See the Utah Manual on Uniform Traffic Control Devices for stop line placement. Stop lines may be angled or staggered (upon approval of the region traffic engineer) in relation to travel direction.”
    • Figure 1-0 UDOT - Crosswalks, Parking, and Intersection Approaches


Painted Median

  • “When crosshatch markings are used on paved shoulders, they shall be diagonal markings that slant away from traffic in the adjacent travel lane. The diagonal markings shall be yellow when used on the left-hand shoulders of the roadways of divided highways and on the left-hand shoulders of one-way streets or ramps. The diagonal markings shall be white when used on right-hand shoulders.” MUTCD Section 3B.24 Chevron and Diagonal Crosshatch Markings
    • Figure 1-0 City of San Jose - On Street Diagonal Parking
    • emailed (Dept of Transportation - Pavement Maintenance) asking of painted median has crosshatch markings and what color edge line
      • Shu Su, PE, Associate Engineer in Geometric Design at City of San Jose - Transportation,, 408-535-5698 recommended white lines on the right side of the road, yellow lines on the left side. So the painted median will be white instead of yellow.


  • Landscaped planters in the parallel parking lane minimum 6 ft wide and 7 ft depth. (San Francisco - Parking Lane Planters)
  • Why this is a bad idea:
    • difficult to street sweep
    • drainage issues, 90 deg corners will collect water a trash or if you keep a curb opening and grate, will get clogged and require manual cleaning.
    • not enough room for tree roots, eventually the roots will raise the curb and gutter and will eventually have to remove and replace, especially if the tree is thriving.
  • Figure 1-0 San Francisco Better Streets - Parking Lane Planters

Wheel Stops

  • City Code - City of Jerome Idaho - 17.26.090: WHEEL BLOCKS
    • Whenever a parking lot extends to a property line, wheel blocks or other suitable devices shall be installed to prevent any part of a parked vehicle from extending beyond the property line.
  • Typically only allowed in parking lots, not allowed in on-street parking (issues with street sweepers, snowplows, bicycles and pedestrian tripping hazard)
  • CCAUSD 238 - Precast Bumper Block
  • place 2' from curb
    • Figure 1-0 County of Sacramento - Barrier Curb Detail

Street Lights


  • J. Sidewalks And Pedestrian Walkways: Sidewalks shall be required on both sides of the street in residential subdivisions and on one side of the street in industrial and commercial subdivisions, except that where the average width of lots, as measured at the street frontage line or at the building setback line, is over two hundred ten feet (210') sidewalks on only one side of the street may be allowed. Pedestrian walkways, when required, shall have easements at least ten feet (10') in width and include a paved walk at least four feet (4') in width.“

Bike Lanes

Fire Hydrant Pavement Markers

Do Not Block

Parking Lots

Fire Truck Access

  • Turning radius - the required turning radius of a fire apparatus access road shall be no less than 28 feet inside turning radius and 52 feet outside turning radius.
  • Painting of curbs and/or asphalt areas adjacent to hydrants: A coat of exterior industrial grade safety red enamel shall be applied for a minimum of 30 feet (15 feet on each side of the hydrant). Southern Nevada Consensus Fire Code: Appendix D
  • Fire Access Plan (N1032_FIRE.dwg then XREF into N1032_UTIL_SHEETS.dwg)
    • Kimley-Horn uses the horizontal control plan for fire lane location
    • Layer: CU-FIRE-PATH
      • Civil Utilities: Fire projection: Truck Path
      • Linetype: Hidden2
      • Color 1 (red)
      • Lineweight: 0.0040”
    • Layer: CU-FIRE-PATH-ANNO
      • Textstyle: R080
      • Layer: C-LABL (keeps defaulting to this even if I change to CU-FIRE-PATH-ANNO)
      • Precision 0
      • Color 1 (red)
      • Lineweight: 0.0040“
      • Curve label style:
        • REC RAD ABV P0
        • REC RAD BLW P0
      • Linetype: Continuous
      • Color 1 (red)
      • Lineweight: 0.0040”
      • Hatch Pattern: ANSI37, Annotative, Scale=1, set annotation scale 1“=80' or whatever
    • Example Fire Access Plan

Fire Turn Radius

    • Note 21. The turning radius of the fire apparatus access roads shall be no less than 52 ft outside and 28 ft inside turning radius. IFC § 503.2.4
    • Note 23. Fire department access roads shall have a minimum unobstructed width of not less than 33 ft with parking on both sides measured to face of curb. Not less than 28 ft wide with parking restricted to one side measured to face of curb. Not less than 24 ft wide with no parking on either side measured to face of curb. Fire lanes through parking lots shall be not less than 24 ft. IFC § 503.2.1.1
  • Fire Access Turning Radius
  • Poggemeyer - Fire Turn Legend
    • Fire Turn Legend

Fire Truck Turnaround




Civil Engineering Engineering - Computer Engineering - Electrical Mechanical Engineering

QR Code
QR Code engineer-civil:parking (generated for current page)