Layers:

Layer: Roadway Functional Classification (0)


Name: Roadway Functional Classification

Display Field:

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Has Views: true

Source Schema Changes Allowed: true

Description: <div style="text-align:Left;"><p><span>MDOT SHA Roadway Functional Classification data consists of linear geometric features which showcase the functional classification of roadways throughout the State of Maryland. Roadway Functional Classification is defined as the role each roadway plays in moving vehicles throughout a network of highways. MDOT SHA Roadway Functional Classification data is primarily used for general planning purposes, and for Federal Highway Administration (FHWA) Highway Performance Monitoring System (HPMS) annual submission &amp; coordination. The Maryland Department of Transportation State Highway Administration (MDOT SHA) currently reports this data only on the inventory direction (generally North or East) side of the roadway. MDOT SHA Roadway Functional Classification data is not a complete representation of all roadway geometry.</span></p><p><span>Maryland's roadway system is a vast network that connects places and people within and across county borders. Planners and engineers have developed elements of this network with particular travel objectives in mind. These objectives range from serving long-distance passenger and freight needs to serving neighborhood travel from residential developments to nearby shopping centers. The functional classification of roadways defines the role each element of the roadway network plays in serving these travel needs. ​ Over the years, functional classification has come to assume additional significance beyond its purpose as a framework for identifying the particular role of a roadway in moving vehicles through a network of highways. Functional classification carries with it expectations about roadway design, including its speed, capacity and relationship to existing and future land use development. Federal legislation continues to use functional classification in determining eligibility for funding under the Federal-aid program. Transportation agencies describe roadway system performance, benchmarks and targets by functional classification. As agencies continue to move towards a more performance-based management approach, functional classification will be an increasingly important consideration in setting expectations and measuring outcomes for preservation, mobility and safety.</span></p><p><span>MDOT SHA Roadway Functional Classification data is developed as part of the Highway Performance Monitoring System (HPMS) which maintains and reports transportation related information to the Federal Highway Administration (FHWA) on an annual basis. HPMS is maintained by the Maryland Department of Transportation State Highway Administration (MDOT SHA), under the Office of Planning &amp; Preliminary Engineering (OPPE) Data Services Division (DSD). This data is used by various business units throughout MDOT, as well as many other Federal, State and local government agencies. Roadway Functional Classification data is key to understanding the role each roadway plays in moving vehicles throughout Maryland's network of highways.</span></p><p><span style="font-family:inherit; font-size:16px;">MDOT SHA Roadway Functional Classification data&nbsp;</span><span style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;">is owned &amp; maintained by the MDOT SHA Office of Planning &amp; Preliminary Engineering (OPPE).&nbsp; This data product&nbsp;is updated &amp; published on an annual basis for the prior year. This data product is for the year 2024.</span><br>&nbsp;</p><div style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;"><span style="font-size:medium;"><font style="font-family:inherit;">For more information related to the data, contact MDOT SHA OPPE Data Services Division (DSD):</font></span></div><div style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;"><span style="font-size:medium;"><font style="font-family:inherit;">Email:&nbsp;</font></span><a style="color:rgb(0, 121, 193); font-family:&quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, Helvetica, Arial, sans-serif; text-decoration-line:none;" href="mailto:DSD@mdot.maryland.gov" target="_blank"><span style="color:#8b0000; font-size:medium;"><font style="font-family:inherit;">DSD@mdot.maryland.gov</font></span></a></div><div style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;">&nbsp;</div><div style="font-family:&quot;Avenir Next W01&quot;, &quot;Avenir Next W00&quot;, &quot;Avenir Next&quot;, Avenir, &quot;Helvetica Neue&quot;, sans-serif; font-size:16px;"><div><span style="font-size:medium;"><font style="font-family:inherit;">For more information, contact MDOT SHA OIT Enterprise Information Services:</font></span></div><div><font style="font-family:inherit;">Email:&nbsp;</font><a style="color:rgb(0, 97, 155); font-family:inherit; text-decoration-line:none;" href="mailto:GIS@mdot.maryland.gov" target="_blank"><span style="color:#8b0000;"><font style="font-family:inherit;">GIS@mdot.maryland.gov</font></span></a><span style="color:#8b0000;"><font style="font-family:inherit;">&nbsp;</font></span></div></div><p>&nbsp;</p></div>

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Supported query Formats: JSON, geoJSON, PBF

Use Standardized Queries: True

Extent:

XMin: -8848466.3582
YMin: 4573240.5451
XMax: -8354553.8713
YMax: 4825782.0702
Spatial Reference: 102100 (3857)


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Global ID Field: GlobalID

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• COUNTY (type: esriFieldTypeString, alias: County Code, SQL Type: sqlTypeOther, length: 2, nullable: true, editable: true)
• COUNTY_NAME (type: esriFieldTypeString, alias: County, SQL Type: sqlTypeOther, length: 30, nullable: true, editable: true)
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• FUNCTIONAL_CLASS_DESC (type: esriFieldTypeString, alias: Functional Classification, SQL Type: sqlTypeOther, length: 60, nullable: true, editable: true)
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ID: INTERSTATE
Name: INTERSTATE
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Attributes:

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ID: PRINCIPAL ARTERIAL (OTHER FREEWAYS & EXPRESSWAYS)
Name: PRINCIPAL ARTERIAL (OTHER FREEWAYS & EXPRESSWAYS)
Domains:

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Name: PRINCIPAL ARTERIAL (OTHER FREEWAYS & EXPRESSWAYS)
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Name: PRINCIPAL ARTERIAL (OTHER)
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ID: LOCAL
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Is Data Versioned: false

Has Contingent Values: false

Supports Rollback On Failure Parameter: true

Last Edit Date: 12/19/2025 10:01:08 PM

Schema Last Edit Date: 12/19/2025 10:01:08 PM

Data Last Edit Date: 12/19/2025 9:47:31 PM