Morrisville UDO - June 2017 version

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Article 5: Development Standards
Section 5.8. Access and Circulation
5.8.6. Vehicular Access and Circulation
Morrisville, NC June 23, 2017
Unified Development Ordinance Page 5-41
transportation impact analysis shows that the development itself is expected to generate sufficient
traffic to warrant design of the street as a major or minor thoroughfare (see Section
, the developer shall be responsible for constructing the street
(including any bikeway, sidewalk, and other associated access and circulation improvements) in
accordance with this section’s standards for a major or minor thoroughfare, as appropriate;
otherwise, the developer shall be responsible for constructing the street (including any bikeway,
sidewalk, and other associated access and circulation improvements) to meet at least those
standards required by this section for a collector street.
B. Off-Site
If a development site fronts on and obtains vehicular access from an existing street, the developer shall
be required to dedicate additional right-of-way along the street frontage or in the vicinity of the
development and to provide roadway, bikeway, sidewalk, and other access and circulation
improvements within the street right-of-way that are reasonably necessary to ensure the safe, convenient,
efficient, and orderly accommodation of vehicular and pedestrian traffic demands and impacts
generated by the proposed development. Such improvements may include, but are not limited to, turn
lanes, deceleration and acceleration lanes, widening or paving of substandard roadways, medians,
bikeways, sidewalks, sidewalk ramps and crossings, street lights, bus shelters, relocation of existing
driveways, and the relocation or improvement of utility lines and facilities needed to accommodate
street improvements. The extent of required dedications and improvements related to the abutting street
shall be roughly proportional to the traffic demands and impacts generated to and along that street by
the proposed development.
5.8.6. Vehicular Access and Circulation
A. Circulation Plan
Applications for Type 1 Subdivision Preliminary Plat Approval (Section , Type 2
Subdivision Preliminary Plat Approval (Section , Major Site Plan Approval (Section
, or Minor Site Plan Approval (Section shall include a circulation plan that
addresses street connectivity, emergency and service vehicle access, parking movements,
accommodation of loading operations, turning radii, traffic calming measures where future “cut-
through” traffic is likely, and similar issues.
The Planning Director may waive the requirement for a circulation plan on determining that a
proposed development is expected to have no impact on circulation or proposes no change in
existing circulation patterns. This provision shall not be construed to exempt development that
includes additional parking, driveways, or substantial modifications to the existing pedestrian
network.
B. Transportation Impact Analysis
Purpose
The Transportation Impact Analysis (TIA) is a part of the overall development review process
conducted by the Town of Morrisville to safeguard the safety, health, and well-being of its citizens.
The TIA is intended to:
a. Assess the impact of a proposed development on the roadway capacity, public transportation,
bicycle, and pedestrian transportation systems;
b. Help mitigate potential effects of a proposed development on the transportation system; and
c. Identify solutions to potential problems and recommend improvements to be incorporated as
required conditions to a proposed development.