Exchange Requirement: Curb and Gutter
Name
Curb and Gutter
Identifier
er_curb-and-gutter
Change Log
| Date (yyyy-mm-dd) | Action | Author (email) |
|---|---|---|
| 2025-12-09 | Initial draft | AI Generated |
Project Stage
Select the applicable project stage(s); remove rows that do not apply.
| Code | Stage |
|---|---|
| 0 | Portfolio requirements |
| 1 | Conception of need |
| 2 | Outline feasibility |
| 3 | Substantive feasibility |
| 4 | Outline conceptual design |
| 5 | Full conceptual design |
| 6 | Coordinated design and procurement |
| 7 | Production information |
| 8 | Construction |
| 9 | Operation and maintenance |
| 10 | Disposal |
Overview
Provide a textual overview of the exchange requirement under the headings Scope, General Description and Information Description. Keep it non-technical and aimed at an executive audience.
Scope
The scope of this exchange requirement is to enable the exchange of curb and gutter information including identification, spatial location (alignment-based and coordinate-based), type classification, and geometric properties necessary for drainage design and pavement edge definition.
General Description
Curb and gutter systems provide pavement edge containment, pedestrian protection, and surface drainage conveyance along roadways. This exchange requirement captures both the geometric definition and the classification properties necessary for design coordination, hydraulic analysis, and construction documentation. The information model supports referencing curb and gutter to highway alignments using stationing and offset data, as well as absolute positioning using state plane coordinates, GPS coordinates, and LRS data.
Information Description
The information exchanged through this requirement includes the following parts:
- Identification
- Alignment Data Linear
- State Plane Coordinates Linear
- LRS Data Linear
- GPS Coordinates Linear
- Curb and Gutter Features
- Joint
- Curb and Gutter Layout
- Curb and Gutter Transition
- Reinforcement
- Pay Item Information
Information Requirements
Preconditions
Before exchanging curb and gutter information, the following information must be available: Alignment and corridor geometry must be established (see Exchange Requirement: Horizontal Alignment, Exchange Requirement: Vertical Alignment, Exchange Requirement: Corridor). Project coordinate system must be defined. Applicable curb and gutter standards and typical sections must be identified.
Parts
A part is a set of information that achieves a specific purpose or function within this exchange requirement (for example: Select Object, Assign To Group, Associate Library Reference). An exchange requirement is expected to consist of many parts.
Repeat the following block for each part.
Part: Identification
- Purpose: Uniquely identify each Curb and Gutter element for database management, field verification, and asset tracking.
Concept: Assign Unique Identifiers
- Purpose: Establish unique identification for each Curb and Gutter instance to support data management and asset tracking.
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Object ID | Unique ID assigned to each asset in database (Type: STRING, Cardinality: R) |
| Feature ID | Specific point, linear, and surface designation (Type: STRING, Cardinality: O) |
| Feature Description | Specific point, linear, and surface detailed description (Type: STRING, Cardinality: O) |
| Survey Feature Code | Short abbreviation surveyors use in the field to identify and describe physical features and data points encountered (Type: STRING, Cardinality: O) |
Part: Alignment Data Linear
- Purpose: Reference the Curb and Gutter location to the project alignment and corridor system using stationing and offset measurements.
Concept: Reference to Alignment System
- Purpose: Establish the relationship between Curb and Gutter elements and the roadway alignment/corridor framework.
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Alignment ID Reference | Alignment ID that is referenced for element layout (Type: STRING, Cardinality: R) |
| Corridor ID Reference | Corridor ID that is referenced for element layout (Type: STRING, Cardinality: R) |
| Station Begin | Station of linear location - begin (Type: REAL, Units: Stationing, Cardinality: R) |
| Station Offset Begin | Offset of linear location - begin (Type: REAL, Units: Feet, Cardinality: R) |
| Station End | Station of linear location - end (Type: REAL, Units: Stationing, Cardinality: R) |
| Station Offset End | Offset of linear location - end (Type: REAL, Units: Feet, Cardinality: R) |
| Reference Point Location | Placement of point for offset (i.e. gutterline for traffic barrier feature) (Type: STRING, Cardinality: R) |
Part: State Plane Coordinates Linear
- Purpose: Provide absolute positioning using state plane coordinate system for survey control and GIS integration.
Concept: Absolute Coordinate Positioning
- Purpose: Define Curb and Gutter location using state plane coordinates independent of alignment references.
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Northing Begin | The “Y” values of coordinates represented on a plane coordinate system - Begin (Linear) (Type: REAL, Units: Feet, Cardinality: R) |
| Easting Begin | The “X” values of coordinates represented on a plane coordinate system - Begin (Linear) (Type: REAL, Units: Feet, Cardinality: R) |
| Northing End | The “Y” values of coordinates represented on a plane coordinate system - End (Linear) (Type: REAL, Units: Feet, Cardinality: R) |
| Easting End | The “X” values of coordinates represented on a plane coordinate system - End (Linear) (Type: REAL, Units: Feet, Cardinality: R) |
Part: LRS Data Linear
- Purpose: Support integration with Linear Reference Systems (LRS) for asset management and maintenance operations.
Concept: LRS Integration
- Purpose: Enable referencing of Curb and Gutter assets within agency LRS databases.
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Postmile Begin | Mile post of point location - begin (Type: REAL, Units: Mile, Cardinality: O) |
| LRS Offset Begin | Linear Reference System offset of point location - begin (Type: REAL, Units: Feet, Cardinality: O) |
| Postmile End | Mile post of point location - end (Type: REAL, Units: Mile, Cardinality: O) |
| LRS Offset End | Linear Reference System offset of point location - end (Type: REAL, Units: Feet, Cardinality: O) |
Part: GPS Coordinates Linear
- Purpose: Provide GPS-based location data for field verification and mobile data collection.
Concept: GPS Positioning
- Purpose: Support field crews with GPS coordinates for location verification.
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Latitude Begin | Latitude of linear location - begin (Type: REAL, Cardinality: O) |
| Longitude Begin | Longitude of point location - begin (Type: REAL, Cardinality: O) |
| Latitude End | Latitude of linear location - end (Type: REAL, Cardinality: O) |
| Longitude End | Longitude of point location - end (Type: REAL, Cardinality: O) |
| Control Points Benchmarks | Reference points with known coordinates and/or elevations, used to create a consistent horizontal and vertical datums for accurate coordination of highway right of way and private property boundaries and existing features for construction projects. (Type: STRING, Cardinality: O) |
| GPS Notes | Notes referring to GPS location data (Type: STRING, Cardinality: O) |
Part: Curb and Gutter Features
- Purpose: Define the type classification and geometric properties of curb and gutter systems for drainage design and pavement edge definition.
Concept: Curb and Gutter Type and Geometry
- Purpose: Specify curb and gutter type and dimensions to support hydraulic analysis and construction specification.
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Curb and Gutter Type | Selection of type including Combined, Curb Only, or Gutter Only (Type: STRING, Cardinality: R) |
| Standard Designation | The reference to a standard drawing, specification, or other official document that provides detailed information and requirements for the curb and gutter feature. (Type: STRING, Cardinality: R) |
Part: Joint
- Purpose: Describe the purpose of the Joint part
Concept: Joint Information
- Purpose: Describe the purpose of capturing Joint information
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Joint Type | The classification of joints formed where two sections of pavement or structural material meet, based on their shape, size, and functional purpose. Common types include contraction joints, expansion joints, and construction joints, which help control cracking and accommodate movement. (Type: STRING, Cardinality: O) |
| Maximum Joint Interval | The greatest permissible spacing between consecutive pavement joints, as specified by design standards, to control cracking and accommodate material movement. (Type: REAL, Units: Feet, Cardinality: O) |
Part: Curb and Gutter Layout
- Purpose: Describe the purpose of the Curb and Gutter Layout part
Concept: Curb and Gutter Layout Information
- Purpose: Describe the purpose of capturing Curb and Gutter Layout information
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Curb and Gutter Width | The full horizontal measurement of the curb and gutter assembly, taken from the outer edge of the curb to the back of the curb, perpendicular to the roadway centerline. (Type: REAL, Units: Feet, Cardinality: R) |
| Height at Edge of Pavement | The vertical distance from the adjacent pavement surface to the top of the gutter pan at the curb face, typically greater than zero for asphalt pavements. (Type: REAL, Units: Inches, Cardinality: R) |
| Height at Back | The vertical distance from the gutter flow line to the top of the curb at its back edge. This dimension represents the curb’s full height and influences drainage capacity and roadway edge containment. (Type: REAL, Units: Inches, Cardinality: R) |
Part: Curb and Gutter Transition
- Purpose: Describe the purpose of the Curb and Gutter Transition part
Concept: Curb and Gutter Transition Information
- Purpose: Describe the purpose of capturing Curb and Gutter Transition information
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Curb and Gutter Start Section | The point where a curb and gutter transition begins, marking the initial change from one curb and gutter configuration to another or to a section without curb. This location establishes the starting geometry for the transition and ensures proper alignment and drainage continuity. (Type: REAL, Units: Stationing, Cardinality: R) |
| Curb and Gutter End Section | The point where a curb and gutter transition end, marking the initial change from one curb and gutter configuration to another or to a section without curb. This location establishes the starting geometry for the transition and ensures proper alignment and drainage continuity. (Type: REAL, Units: Stationing, Cardinality: R) |
| Curb and Gutter Length of Transition | The longitudinal distance along the roadway over which a curb and gutter configuration changes from one type or dimension to another. This measurement ensures a smooth geometric adjustment for drainage and vehicle accommodation. (Type: REAL, Units: Feet, Cardinality: R) |
Part: Reinforcement
- Purpose: Describe the purpose of the Reinforcement part
Concept: Reinforcement Information
- Purpose: Describe the purpose of capturing Reinforcement information
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Reinforcement | The indication of whether an object includes reinforcement. (Type: BOOLEAN, Cardinality: O) |
Part: Pay Item Information
- Purpose: Provide construction contract administration data for cost estimation and payment processing.
Concept: Contract Pay Items
- Purpose: Define pay items associated with Curb and Gutter construction for quantity tracking and contractor payment.
Provide a table with the set of information requirements for each concept. Extend the table as needed.
| Idea | Explanation |
|---|---|
| Pay Item Code | The code used to describe the pay item often associated with construction standards or specifications developed by an owner agency. (Type: STRING, Cardinality: R) |
| Pay Item Description | A description of the pay item code. (Type: STRING, Cardinality: R) |
| Pay Item Unit of Measure | The unit of measure associated with the pay item (LF, CY, LS, etc.). Use the unit abbreviation defined in the associated specification if one exists. (Type: STRING, Cardinality: R) |
| Pay Quantity | Pay Item quantity (Type: STRING, Cardinality: R) |
| Pay Item Note | A note used to further describe the pay item. (Type: STRING, Cardinality: O) |
| Specification URL | The world wide web address associated with the specification or specification section that provides additional information realted to the Pay Item. (Type: STRING, Cardinality: O) |