Orange County NC Website
<br />2 | Page <br /> <br />Trip Generation: <br /> <br />Average weekday daily, AM peak hour, and PM peak hour trips for the proposed potential expansion of <br />the existing development was estimated using methodology contained within the ITE Trip Generation <br />Manual, 11th Edition. It should be noted that based on NCDOT’s Rates vs. Equations sheet, square <br />footage is the preferred independent variable. In this case where only the staff is expected to increase, <br />“employees” was used as the independent variable. Refer to Table 2 for the site trip generation <br />potential for the site. <br /> <br />Table 2: Trip Generation Summary <br /> <br />Land Use <br />(ITE Code) Intensity <br />Daily <br />Traffic <br />(vpd) <br />Weekday <br />AM Peak Hour <br />Trips (vph) <br />Weekday <br />PM Peak Hour <br />Trips (vph) <br />Enter Exit Enter Exit <br />Clinic <br />(630) 5 Employees 164 8 2 7 11 <br /> <br />It is estimated that the increase in staff will generate 164 total site trips on the roadway network <br />during a typical 24-hour weekday period. Of the daily traffic volume, it is anticipated 10 trips (8 <br />entering, 2 exiting) will occur during the weekday AM peak hour and 18 trips (7 entering, 11 exiting) <br />during the weekday PM peak hour. It should be noted that the staff expansion, if it were to occur, is <br />expected to generate significantly fewer trips than ITE suggests based on coordination with the owner <br />and current operations. <br /> <br />The anticipated trips for the proposed potential expansion of the existing site are expected to be less <br />than the typical threshold the North Carolina Department of Transportation (NCDOT) supports for <br />requiring a Traffic Impact Analysis (TIA) (3,000 trips per day). Orange County’s (County) Unified <br />Development Ordinance (UDO) supports a threshold of 800 trips per day to require a TIA. The <br />proposed expansion of the existing site is anticipated to be under the daily thresholds to require a TIA <br />by both NCDOT and the Town. <br /> <br />With the clinic expansion added to the roadway network, AADT along Dairyland Road is not expected <br />to exceed 1,200 vehicles per day. NCDOT can typically require turn lanes once a roadway exceeds <br />4,000 vehicles per day. With the existing low AADT and minimal traffic being generated by the clinic, <br />acceptable operations are expected at the access, and no turn lanes are expected to be warranted. <br />65