Visual Glossary

SIDEWALKS: Surface Material | Status Surface | Type | Remove​ | Length

RAMPS: Status | Detectable Warning Surface | Ramp Position | Remove

CROSSWALKS: Raised | Pedestrian Signalization | Status | Type | Remove | Length

Sidewalks

SIDEWALKS: SURFACE MATERIAL

Ramps

Ramps: Status

Existing is for ramps that are confirmed from the aerial imagery via the identification of a detectable warning surface.

 

Assumed is for all other ramps where the physical ramp cannot be confirmed, but assumed based on context (crosswalks, side flares, etc.)

 

Proposed ramps should be added where a marked crosswalk terminates without a connecting ramp.

In this image, an existing ramp would be added to left end of crosswalk and a proposed ramp would be added to the right end of the crosswalk.

 

Ramps: Detectable Warning Surface

Is a detectable warning surface present? (A detectable warning surface means the ramp has a rough texture embedded in the surface.)

Yes

No

Ramps: Ramp Position

Single Direction – Ramp that conveys pedestrians in only one direction, as represented with a single marked or unmarked crosswalk.

Note: ramp must be located within an intersection (defined as any location where two (2) or more named road centerline segments intersect.)

Multi-Direction – Ramp that conveys pedestrians in two or more directions, as represented with multiple marked or unmarked crosswalks.

Note: ramp must be located within an intersection (defined as any location where two (2) or more named road centerline segments intersect.)

Island / Median– Ramp located within a corner island, dividing island, or median surrounded by roadway.

Mid-Block– Ramp not located at an intersection or within an island / median.  As the name suggests, it is a mid-block conveyance of pedestrian traffic.

Other– For any ramp that does not meet one of the above criteria.  Used primarily at commercial entrances or aprons, where a roadway centerline does not exist.  Other ramps should not be used at roadway intersections.

Unknown– Any ramp that has an unclear type or is located at an intersection and does not connect to a crosswalk.

Ramps: Remove?

Remove this ramp from the dataset. There is no ramp present at this time.

Crosswalks

Crosswalks: Raised

Is the crosswalk raised? A raised crosswalk is where the crossing surface is elevated; often associated with a speed bump.  The crosswalk will also have a marking type that matches one of the crosswalk types listed below.

Crosswalks: Pedestrian Signalization

Is there a pedestrian signal at this crosswalk?

Crosswalks: Status

Is there an existing marked crosswalk here?

Crosswalks: Type

What type of crosswalk is it?

Bar Pairs – Perpendicular striping that is grouped into pairs throughout the crosswalk area.

Continental – Evenly spaced perpendicular bars.

Dashed– Dashed parallel striping that denotes the outer boundaries of the crosswalk area.

Decorative– A segment of crosswalk that contains geometric patterns, artistic scenes, or other non-traditional patterns.

Diagonal – Evenly spaced diagonal lines.

Ladder– Evenly spaced perpendicular bars with parallel striping abutting the bars on either side.

Parallel – Solid parallel striping that denotes the outer boundaries of the crosswalk area.

Solid– Solid marking that covers the entire crosswalk area.

Unmarked (default) – A segment of crosswalk that is not marked on the roadway.

Unknown – Any segment of crosswalk that has an unclear marking type.

Crosswalks: Remove?

Remove this crosswalk from the dataset. There is no ramp present at this time.

Crosswalks: Length

Approximate length of the crosswalk feature. Not verified.