Airport Master Plan 2012 - City of Waterville

The general aviation tie-down apron, located near the main hangar has 16 designated aircraft tiedown
positions (approximately 4,800 square yards). This apron is used for both short and long
term (based) aircraft parking.
On the northwest area of the field, the aircraft apron located in the old terminal area in front of the
former Telford hangar is approximately 0.9 acres in size (4,356 square yards). This pavement has
been neglected for many years and is in very poor condition and is not currently used to park
aircraft.
These aircraft parking aprons total approximately 12,056 square yards.
A parking apron should provide for the number of locally based aircraft that are not stored in hangars, and
for those air taxi, training and itinerant aircraft anticipated to use the facility.
For planning purposes, 50 percent of the based aircraft total will be used to determine the parking apron
requirements of based aircraft.
The aircraft apron parking requirements for based and itinerant aircraft are calculated in the tables below.
These numbers are derived by using the medium growth forecast scenario (scenario 2) in order to
determine potential facilities required to meet projected demand.
Table 3.13
Based Aircraft Apron Parking Requirements
Based Aircraft 2007 2012 2017 2027
Single-Engine 29 36 39 45
Requirements @ 300 sq. yds. * 50% 4,350 5,400 5,850 6,750
Source: The Louis Berger Group, Inc. Calculations
To derive the itinerant aircraft apron parking requirements, the Average Day of the Peak Month was used.
July was determined to be the peak month, averaging 12% of the annual operations. This percentage was
applied to the existing and future operations numbers and then divided by 31 to represent a Peak Day.
Based on a split between historical local and Itinerant operations data, Itinerant Peak Day operations were
assumed to be 45% of the operations. It was then assumed that approximately 50% of the Peak Day
Itinerant traffic will need parking space. The results are shown in the table below.
Table 3.14
Itinerant Aircraft Apron Parking Requirements
Year
Average Peak Day Average Peak Day Required Itinerant
Itinerant Operations Itinerant Aircraft Apron (sq yds) 1
2007 24 12 4,320
2012 28 14 5,040
2017 30 15 5,400
2027 35 18 6,480
1 Apron area shown provides 360 sq. yds/aircraft
Source: The Louis Berger Group, Inc. Calculations
Table 3.15
The City of Waterville Maine
Facility Requirements – Page 3-14
Airport Solutions Group, LLC & The Louis Berger Group, Inc. December 2011