Morrisville Unified Development Ordinance - October 2019

Article 5: Development Standards Section 5.8. Access and Circulation 5.8.6. Vehicular Access and Circulation

C. Vehicular Accessway Classifications As a basis for application of many of the access and circulation standards in this section, proposed and existing vehicular accessways shall be classified in accordance with the classifications in Table 5.8.6.C, Vehicular Accessway Classifications, which reflect accessway characteristics and relative functions in providing access to and from principal origin and destination points and accommodating travel mobility. Driveways represent the lowest basic classification and freeways the highest basic classification. Main Street is a special classification of accessway.

Table 5.8.6.C: Vehicular Accessway Classifications

Daily Traffic Volume

Number of Lanes [1]

Access Control

Land Use Service

Posted Speed

Accessway Classification and Description

Driveways —Accessways that function solely to provide direct and immediate vehicular access between a street and the principal origin and destination points within an abutting development, or part of a large development. They generally handle low vehicular travel speeds and traffic volumes, though may also handle moderate to high traffic volumes within large commercial and mixed- use developments. Alleys —Specialized accessways that primarily function to provide secondary vehicular access and/or service and delivery vehicle access between a street and the rear or sides of lots or buildings. Alleys also may provide primary vehicular access for dwellings designed to have no driveway access from the fronting street. Local Streets —Accessways that primarily function to provide direct vehicular access to and from abutting development, or parts of a large development, as well as to provide travel mobility by connecting driveways and other local streets with collector streets and thoroughfares. Local streets generally handle low to medium vehicular travel speeds and traffic volumes, but may handle high traffic volumes within large commercial and mixed-use developments or in urbanized areas Main Streets —Specialized accessways that primarily function to accommodate pedestrian access to and within concentrations of higher intensity retail and mixed land uses such as the Town Center and activity center centers. They are designed with attractive pedestrian- friendly streetscapes that promote walking, bicycling, and transit. To accommodate high pedestrian activity, they generally provide limited direct driveway access to abutting development, relying instead on side street access to rear parking facilities. Collector Streets —Accessways that primarily function both to provide direct vehicular access to and from abutting development, particularly in commercial and industrial areas, and to provide travel mobility among neighborhoods and activity centers by connecting local streets and other collector streets with thoroughfares. They generally handle relatively moderate travel speeds and traffic volumes over moderately average trip lengths.

1-2

Variable

Very Low

Very High

<15 mph

1-2

10 - 250

Very Low

Very High

5-10 mph

50 – 12,000

15-35 mph

2-3

Very Low

High

250 – 10,000

15-25 mph

2-3

Very Low

Very High

1,000 – 20,000

Moderate - High

25-40 mph

2-3

Low

Morrisville, NC

October 1, 2019

Unified Development Ordinance

Page 5-57