[Amended 5-17-2017 by Ord. No. 955-16]
A traffic impact study (TIS) shall be prepared by a certified professional engineer, experienced in traffic engineering studies, licensed by the Commonwealth of Pennsylvania. All costs of the traffic study shall be borne by the property owner or applicant. A TIS shall be required for:
All new or changed nonresidential land developments, including new structures or additions to the structures, generating average weekday traffic of at least 300 trips per day based on the latest edition of "Trip Generation," Institute of Transportation Engineers.
All residential and land developments consisting of 30 or more dwelling units.
All conditional uses located within residential districts, unless waived by Council, as recommended by the Planning Commission.
Traffic impact study required components. The following components shall be required:
An applicant for a subdivision or land development requiring a traffic impact study, per standards stated in Subsection A of this section, is strongly encouraged to meet with the Municipal Engineer and the Planning Commission for an advisory meeting, pursuant to this chapter, for the purpose of the determination of issues and areas to be addressed in the required traffic impact study. If the applicant does not elect to meet with the Planning Commission or the Municipal Engineer prior to submission, all applicable elements of the traffic impact study as described in Subsection B(2) through (11) below shall be required.
General site description. A detailed description of the highway network in the immediate vicinity of the site, a description of the proposed land uses, the anticipated stages of construction and the anticipated completion date of the proposed subdivision or land development. This description shall include a map of the immediate vicinity of the site with the following items: all major intersections, all proposed ingress and egress locations, all existing and proposed streets, rights-of-way and driveway widths, including cartway and shoulder widths, vertical grades, horizontal curvatures, obstructions, sight distance, posted speed limits, signage or other notable features; all existing traffic signals and other traffic control devices and, if applicable, all existing and proposed public transportation services and facilities and proposed school bus stops on the site. In addition, any changes to the highway network within the immediate vicinity shall be described. This description shall include the above items as well as any proposed construction project that would alter the width or alignment of the present highway.
Description of the existing traffic conditions and volumes (weekday, morning and evening peak hours and one Saturday peak hour) the proposed use is in operation in those time periods.
Transportation impact of the development using the ratios and methodology contained in the current edition of the Manual of the Institute of Traffic Engineers.
Determination of street service level.
Determination of intersection service levels for intersection(s) generation more than 100 trips in any peak hour.
Traffic accident history.
Impact on pedestrians.
Traffic improvements, planned or recommended (e.g., additional traffic lanes, traffic signal, traffic signage).
Estimates of trip generation. Trip generation can be estimated using any one of the following three methods: analogy, trip distribution model or surrogate data. Whatever method is used, trip distribution shall be estimated and analyzed for the horizon year and a ten-year projection (both with and without development). Consideration should also be given to whether inbound and outbound trips will have similar distributions.
If the operating speed of 85% or more of the vehicles using the subject street exceeds the posted speed limit by more than 10 miles per hour, then the 85th percentile speed of vehicles shall be used by the TIS.
The study shall be submitted to the Municipal Engineer for review and comments. A copy shall also be forwarded to the Pennsylvania Department of Transportation if streets under their jurisdiction are in the study area. A copy shall be forwarded to the Westmoreland County Department of Planning and Development if streets under jurisdiction of Westmoreland County are in the study area.
When a proposed development is projected to have an adverse impact sufficient to exceed an acceptable level of service or standard defined by the Pennsylvania Code, Title 67, Chapter 201 regulations, or its succeeding regulations, and adopted by the Municipality in Chapter 97, Construction Standards, then the Planning Commission may recommend and the Municipal Council may require changes to the proposed development plan in order to ensure adequate mitigation of negative traffic impacts. These required changes may include, but are not limited to:
Altering the proposed project to reduce impacts.
The phasing of construction plans to coincide with the completion of state or municipal transportation improvements. Phasing shall not be required unless the improvements have been budgeted for by the responsible body and scheduled for commencement no later than six months after the Council's approval of the proposed development and for completion no later than 18 months after said approval date.
The construction of transportation improvements within the proposed development, or in the immediate vicinity thereof necessary for directing, providing or controlling access to the development. Such improvements shall be limited to the aforesaid needs which are proximately caused by and directly benefit the proposed development and are to be separate and distinct from general transportation improvements contemplated under Article V-A of the Pennsylvania Municipalities Planning Code.
Provisions applicable to land developments involving the utilization of delivery trucks to nonresidential uses located in residential and overlay districts.
The proposed routes must be designed to minimize the impact on streets within the Municipality. The Municipality reserves the right to designate alternate routes in the event that the applicant's proposed routes are deemed inadequate, unsafe or overly disruptive to normal vehicular traffic by the Municipal Engineer.
Prior to the commencement of any activity at the development or facility, the applicant shall enter into a municipal roadway maintenance and repair agreement with the Municipality, in a form acceptable to the Municipality, regarding maintenance, repair and bonding of municipal roads that are to be used by vehicles for development activities. The municipal roadway maintenance and repair agreement will identify the responsibilities of the applicant to prepare, maintain, and repair municipal roads before, during and immediately after activity associated with the development or facility. The applicant shall take all necessary corrective action and measures as directed by the Municipality pursuant to the agreement to ensure the roadways are repaired and maintained during and at the conclusion of all development activities.
The applicant shall take the necessary safeguards to ensure that the municipal roads utilized remain free of dirt, mud and debris resulting from development activities and/or shall ensure such roads are promptly swept and cleaned if dirt, mud and debris occur.
The applicant shall take all necessary precautions to ensure the safety of persons in areas established for road crossing and/or adjacent to roadways (for example, persons waiting for public or school transportation). Where necessary and allowed, during periods of anticipated heavy or frequent truck traffic associated with the development or facility, the applicant will provide flagmen to ensure the public safety and include adequate signs and/or other warning measures for truck traffic and vehicular traffic.
There will be no staging of trucks or equipment on local roads.
A traffic control plan in conformance with PennDOT standards shall be provided.
Storage of machinery, vehicles and equipment. It shall be illegal to park or store any vehicle or item of machinery or equipment on any street, right-of-way or in any driveway, alley or on the development or facility which constitutes a fire hazard or an obstruction to or interference with fighting or controlling fires, except that equipment which is necessary for the maintenance of the development or facility or for the gathering or transporting of hydrocarbon substances from the site.