Airport Master Plan 2012 - City of Waterville

Table 4.2
Taxiway Alternatives Analysis
Analysis Factor
Impact
T0: No Build (Status Quo)
Engineering Not Applicable
Operational No improvement to safety and efficiency.
Environmental None – no change.
Land Use None – no change.
T1a: Construct New Taxiway “E”
Engineering Limited – requires design
Operational Significant – increases efficiency
Environmental Limited – increases impervious surface.
Land Use None – no change.
T1b: Construct New Taxiway “E”
Engineering Limited – requires design, costs more than T1a (longer)
Operational Significant – increases efficiency
Environmental Limited – increases impervious surface
Land Use None – no change
T1c: Construct an extension of Taxiway “B” that connects it to Taxiway “D”
Engineering Limited – requires design, costs more than all other taxiway alternatives
Operational
Significant – Highest operational benefit for larger aircraft, maybe jet blast issue for
aircraft traveling east
Environmental Limited – Increases impervious surface
Land Use Significant – Requires Land Acquisition
T2: Use a portion of Runway 14-32 to create an additional stub taxiway between taxiways
“B” and “C”
Engineering Limited – Requires design, pavement rehabilitation and removal
Operational Significant operational benefits for most current based aircraft
Environmental Improvement – Decreases the amount of impervious surface
Land Use None – No change
Taxiway Alternatives Conclusion
Of the four alternatives, the City chose Alternative T-1a, which exits in front of the Phase II terminal
apron; it is also the shortest in length of the three concepts and the least expensive. Alternative T-2 was
eliminated as a result of keeping Runway 14-32 open. Alternative T-1a has minor design challenges with
respect to proposed grading between Taxiway A and the terminal ramp area. The City has indicated that
Alternative T-1a is considered a long term improvement.
4.3 Apron Area Alternatives
Aircraft parking aprons provide parking for aircraft and also provide access to terminal facilities, aircraft
fueling areas and surface transportation. Typically, there are two types of aprons to be considered in a
master plan:
Transient Aprons
Based Aircraft Aprons
The City of Waterville Maine
Alternatives Analysis – Page 4-6
Airport Solutions Group, LLC & The Louis Berger Group, Inc. December 2011