DRAFT Comprehensive Transportation Plan Update: February 23, 2018 version

CRABTREE CROSSING

PARKWAY EXTENSION

ANALYSI S

CRABTREE CROSSING PARKWAY EXTENSION ANALYSIS

The Crabtree Crossing Parkway Extension is a proposed long-term (25 or more years) street connection from Morrisville-Carpenter Road at

Town Hall Drive to Stardale Road. The proposed street is a two-lane collector street with a speed limit of 25 miles per hour, including

striped bicycle lanes and sidewalks. In addition to the proposed street extension, there are two greenway connections to the Crabtree-

Hatcher Creek Greenway. One connection is proposed from Morrisville-Carpenter Road, and a second connection from Crabtree Crossing

Parkway is funded and under construction.

During the development of the Town of Morrisville Comprehensive Transportation Plan Update , the Planning and Zoning Board

requested Town staff to coordinate with the consultant to identify a series of scenarios to test the effects of the Crabtree Crossing Parkway

Extension on the roadway network. Appendix I documents the definition, methodology, and results from each scenario. Information

gathered from this analysis was used by the Planning and Zoning Board to development Plan recommendations.

SCENARIO DEFINITIONS

The Crabtree Crossing Parkway Extension analysis consisted of a series of ten scenarios (model scenarios) using the currently approved

version of the Triangle Regional Travel Demand Model (version 5). All of the model scenarios were performed for AM peak (6AM – 10AM)

and PM peak (3PM – 7PM) periods, using the population and employment growth projections for 2040. For each scenario, the roadway

network and attributes within the travel demand model were revised to reflect the definitions provided below, and are illustrated in two

ways: road segment volumes and road segment v/c ratios.

The ten model scenarios contain the following attributes:

 Scenario 1 consists of a model scenario showing committed Morrisville projects, Davis Drive widening, NC 54 widening, Airport

Boulevard Extension, NC 147 extension, using an alignment that connects directly into McCrimmon Parkway at Town Hall Drive, and

Crabtree Crossing Parkway Extension.

 Scenario 2 reflects existing and committed projects within the Town of Morrisville, and existing facilities only for surrounding areas.

This scenario includes the completion of the NC 147 extension, using an alignment that connects directly into McCrimmon Parkway

at Town Hall Drive, and Crabtree Crossing Parkway Extension.

 Scenario 3 reflects existing and committed projects within the Town of Morrisville, and existing facilities only for surrounding areas.

This scenario includes the completion of the NC 147 extension, using an alignment that connects directly into McCrimmon Parkway

at Town Hall Drive.

 Scenario 4 reflects existing and committed projects within the Town of Morrisville, and existing facilities only for surrounding areas.

This scenario includes Crabtree Crossing Parkway Extension, but does not include the completion of the NC 147 extension.

 Scenario 5 reflects existing and committed projects within the Town of Morrisville, and existing facilities only for surrounding areas.

This scenario does not include the completion of the NC 147 extension or Crabtree Crossing Parkway Extension.

 Scenario 6 reflects existing and committed projects within the Town of Morrisville, and existing facilities only for surrounding areas.

This scenario includes a realigned NC 147 extension that connects in with Little Drive and a new local road extending from

McCrimmon Parkway at Town Hall Drive to the NC 147 extension. Scenario 6 has been conducted with the Crabtree Crossing

Parkway Extension complete.

 Scenario 7 reflects existing and committed projects within the Town of Morrisville, and existing facilities only for surrounding areas.

This scenario includes a realigned NC 147 extension that connects in with Little Drive and a new local road extending from

McCrimmon Parkway at Town Hall Drive to the NC 147 extension. Scenario 7 has been conducted without the Crabtree Crossing

Parkway Extension.

 Scenario 8 consists of a model showing committed Morrisville projects, plus Davis Drive widening, NC 54 widening, Airport Boulevard

Extension, and the NC 147 extension, using an alignment that connects directly into McCrimmon Parkway at Town Hall Drive . This

scenario does not include the completion of Crabtree Crossing Parkway Extension.

 Scenario 9 reflects existing and committed projects within the Town of Morrisville, and existing facilities only for surrounding areas.

This scenario includes a realigned NC 147 extension that connects in with Little Drive at Davis Drive. This scenario does not include a

new local road connection from Town Hall Drive and McCrimmon Parkway (“Town Hall Drive Ext.”) to the NC 147 extension. This

scenario includes Crabtree Creek Parkway Extension.

 Scenario 10 reflects existing and committed projects within the Town of Morrisville, and existing facilities only for surrounding areas.

This scenario includes a realigned NC 147 extension that connects in with Little Drive at Davis Drive. This scenario does not include

the Crabtree Crossing Parkway Extension or a new local road connection extending from McCrimmon Parkway at Town Hall Drive to

the NC 147 extension.

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