[Ord. 2007-07, 12/11/2007, § 1]
1.
The following pages contain charts representing the minimum required
details for a submitted plan of various types to be considered a complete
plan.
[Ord. 2007-07, 12/11/2007, § 1]
1.
The following charts indicate the minimum requirements (drawings
and documentation) for the submission of a formally filed sketch plan:
A.
The requirements for a sketch plan are in the column marked "Sketch,
§ 22-402."
2.
The sketch plan may be freehand drawn.
3.
The sketch plan must be of sufficient details for the Township to
review and make recommendations.
[Ord. 2007-07, 12/11/2007, § 1]
[Ord. 2007-07, 12/11/2007, § 1]
[Ord. 2007-07, 12/11/2007, § 1]
[Ord. 2007-07, 12/11/2007, § 1]
1.
The following charts indicate the minimum requirements (drawings
and documentation) for the submission of a formally filed final land
development plan:[1]
A.
The
requirements for a final land development plan are in the column marked
"Land Development, Final, § 22-406."
[1]
Editor's Note: The Plan Requirements Chart is included as an attachment to this chapter.
[Ord. 2007-07, 12/11/2007, § 1]
1.
The chart indicates the types of documentation that must be submitted
to support the various types of formally submitted plans.
2.
The following supporting data shall be submitted for plans as noted.[1]
[1]
Editor's Note: The Required Documentation Chart is included as an attachment to this chapter.
[Ord. 2007-07, 12/11/2007, § 1]
1.
The chart for this section indicates the various types of notations
that are requested for various plan types.[1]
[1]
Editor's Note: The Required Notations Chart is included as an attachment to this chapter.
[Ord. 2007-07, 12/11/2007, § 1]
1.
The applicant shall submit a plan in duplicate concerning the control
of erosion and sedimentation on a proposed development.
2.
The plan shall be designed to prevent accelerated erosion and sedimentation.
3.
The plan shall consider all factors which contribute to erosion and
sedimentation including, but not limited to, the following:
A.
The topographic features of the tract.
C.
The proposed alteration to the tract.
D.
The amount of runoff from the tract.
E.
The runoff from the off-site upland watershed area.
F.
The staging of earth-moving activities.
G.
Temporary control measures and facilities for use during earth moving.
H.
Permanent control measures and facilities for long term protection.
I.
A maintenance program for the control facilities, including disposal
of materials removed from the control facilities or tract.
J.
The plan shall also contain any additional information as required
by Chapter 102 of Title 25 of the Pennsylvania Code.
4.
All plans where earthmoving activities will occur must receive approval
from the York County Conservation District (YCCD).
[Ord. 2007-07, 12/11/2007, § 1]
1.
Purpose.
A.
New land developments and expansions of existing developments can
have a significant impact on the transportation system, particularly
if adequate planning and consideration of system improvements are
not addressed. In order to ensure that a highway system can satisfactorily
accommodate a proposed development,
B.
A traffic impact study (TIS) may be required to analyze relevant
impact issues. A TIS is a comprehensive study that analyzes all surface
transportation modes that would be affected by a development, including
pedestrians, bicycles, and public transportation services. The impact
analysis area will generally be larger than just the immediate site.
C.
The TIS concludes whether any transportation improvements are necessary
to accommodate new and/or future traffic volumes generated by the
proposed development or general growth of background traffic volumes.
These improvements could include right turn lanes, left turn lanes,
additional through lanes, acceleration lanes, bicycle lanes, bus stops,
sidewalks, islands, medians, access control, traffic signals, removal
and/or consolidation of existing approaches, etc.
D.
The TIS documents the extent of the impact of the proposed development
on the highway system, including trips added, resulting levels of
service during weekday a.m., p.m. and Saturday (when necessary) peaks,
and the need for auxiliary lanes or other special capacity or safety
features. Required changes in traffic control, land use, access, pedestrian
or bicycle usage must also be documented.
E.
Additionally any changes effecting safety or traffic operations on
the Township or State highway system including, but not limited to,
striping, channelization, medians, islands, signalization and/or changes
in access, shall be documented by the developer to show that all adjacent
and/or affected property owners and businesses have been contacted
and the impacts to their property has been discussed. A list of the
names and addresses of all adjacent and/or affected property owners
and businesses that were contacted shall be included with the TIS.
2.
When Required.
A.
A TIS shall be required with the submission of a new site plan, preliminary
subdivision plan for a new or expanded existing development, or an
official zoning district map application. The TIS shall be submitted
when the following are exceeded:
B.
Projects, other than residential single lot developments, with direct
vehicular access proposed to Route 30, North George Street, Susquehanna
Trail, Greenbriar Road, Roosevelt Avenue, Board Road, or Church Road.
C.
Expansion to any existing use exceeding 5,000 square feet or increasing
the square footage by 5,000 square feet or more if no traffic impact
study has been approved for the use in the five-year period preceding
the application for expansion.
D.
In addition, a traffic impact study shall be prepared whenever either
one of the following conditions exist within the traffic impact study
area:
(1)
Current safety or congestion problems exist in the local area,
such as high-accident location(s), confusing intersection(s), or a
congested intersection(s), which affects access to the development.
(2)
The capacity of the existing roadway system to handle increased
traffic volume, or the ability to improve the roadway system to handle
increased traffic is limited.
3.
Impact Analysis Area.
A.
There are several thresholds that must be analyzed to determine the
scope of study area for each project. The thresholds are based on
the number of trips to be generated in a twenty-four-hour period,
which are referred to as average daily traffic volumes (ADT). In any
event the applicant shall contact the Township to obtain concurrence
for the level of study.
(1)
Level I (0-200 ADT). Include each access point to the development
including public streets/roadways, joint permanent easements and private
driveways. A Level I study is generally required for larger residential
subdivisions, small office developments or smaller commercial developments.
(2)
Level II (201-3,000 ADT)-Level II (200-3,000 ADT). Include each
access point to the development including public streets/roadways,
joint permanent easements and private driveways. In addition, the
study shall include the first major intersection beyond each site
point of access. Major intersections are intersections controlled
by traffic signals or stop signs and could include driveways. If there
are no nearby major intersections Township staff will determine the
extent of the study area. If a freeway interchange is nearby the project
site to be developed it shall be included in the study. This level
of study is commonly required for moderately sized commercial developments
and larger office complexes.
(3)
Level III (More than 3000 ADT). Level III studies shall include
each access point to the development including public streets/roadways,
joint permanent easements and private driveways. In addition, the
study area shall include at least the first major intersection beyond
each site point of access and any intersection beyond that that will
increase by 100 or more peak directional trips generated by the development.
In any event the exact area to be studied shall be determined by Township
staff with input from the preparer of the study. Level III studies
are usually warranted only with very large mixed-used and commercial
developments.
4.
Who Should Prepare Transportation Impact Study. Traffic impact studies
shall be prepared under the supervision of qualified and experienced
transportation professional that has specific training in traffic
and transportation engineering and planning and several years of experience
related to preparing transportation studies.
5.
Context and Framework.
A.
Existing Conditions.
(1)
Collect baseline data including manual turning movement counts
at each intersection and automatic traffic recorder (ATR) counts on
each road segment. Include vehicle classification and speed analysis.
Consideration must be given to the time of year the counts are performed
and adjusted accordingly. Data will not be accepted if it is older
than two years.
(2)
Collect crash data.
(3)
Collect geometric information at each intersection including
primary traffic control devices, signs and pavement markings. Obtain
traffic signal plans for each signalized intersection to determine
signal operation, phasing and timing. Also to determine if the signal
is interconnected and coordinated. If a signalized intersection is
included in the study area and it is interconnected and coordinated,
all intersections in the system must be included in the study.
(4)
Photographs of each intersection and of other pertinent geometric
conditions must be obtained and included in the study.
(5)
Determine if there are other developments that have either been
approved for development or are under development that need to be
included as background data.
B.
Projected or Non-site Traffic.
(1)
Estimates of non-site traffic are required to complete the analysis
of horizon-year conditions. These estimates characterize the "base"
conditions-that is, without the subject site being developed.
(a)
Through traffic consists of all movements through the study
area, without either an origin or a destination in the study area
(sometimes referred to as "background traffic").
(b)
Other development traffic consists of other developments in
the study area, with an origin and/or destination in the study area
(sometimes referred to as pipeline development).
C.
Future Conditions. Analyze future base conditions to provide assessment
of how traffic will operate in the study horizon year without the
study site being developed as proposed.
D.
Site Traffic Generation.
(1)
Estimate the amount of traffic to be generated by the proposed
development for both the peak hours of the adjacent street and the
peak hour of the generator. Use of the Institute of Transportation
Engineers (ITE) Trip Generation Manual is recommended.
(a)
Collect additional data if:
1)
The study site is not compatible with the ITE land use code
definition;
2)
There are only one or two data points (preferably if there are
five or fewer data points);
3)
The independent variable does not fall within the range of data;
or,
4)
Neither the weighted average rate line nor the fitted curve
falls within the data cluster for the size of this specific development.
(2)
Use the regression equation when:
(a)
A regression equation is provided;
(b)
The independent variable is within the range of data; or,
(c)
Either the data plot has at least 20 points or the correlation
coefficient R2 > 0.75, equation falls within the data cluster in the
plot, and standard deviation > 110 of the weighted average rate.
(3)
Use the weighted average rate when:
F.
Site Access and Off-Site Improvements.
(1)
The preferred level-of-service in Manchester Township is LOS
D. All intersections and their approach movements should operate at
or above this level-of-service. If they do not operate at LOS D or
better then improvement mitigation measures must be recommended to
improve the LOS to D or above.
(2)
Any new access, new intersection or addition of a leg to an
existing intersection must operate at a level-of-service C or better.
(3)
Roadway segment analysis must also be provided. The degree of
adequacy of roadway segments between intersections is directly related
to the number of traffic lanes, intersection spacing, vehicular queuing
requirements at successive intersections and weaving or merging requirements.
(4)
Cost opinions for all improvements must be provided. The cost
opinions must include design, construction, right-of-way, utilities,
inspection and any other cost to complete the recommended improvement.
(5)
An agreement between the developer and the Township must be:
(a)
Drafted indicating:
1)
The off-site intersections projected to be improved.
2)
The percentage of traffic (responsibility) of the proposed development
on that intersection.
3)
The total estimated cost of the total improvement of the intersection(s).
4)
The developer's associated costs for improvement of the
intersection.
(c)
Agreement shall be recorded in the office of the York County
Recorder of Deeds.
G.
Traffic Impact Study Report. All pertinent information and data must
be included within the study document including but not limited to:
(1)
Traffic count data sheets.
(2)
Crash histories.
(3)
Traffic signal permit plans.
(4)
Intersection and roadway sketches.
(5)
Photographs of intersections and roadway segments.
(6)
Site location map.
(7)
Subdivision or land development plan of proposed project.
(8)
Capacity analysis in a format that provides all input and output
data required to review the study.
(9)
Queue analysis.
(10)
Tables and exhibits as required showing the above information
and data.
(11)
Safe stopping sight distance (SSSD) calculations for all existing
and proposed intersections.
