Master Plan Update (pdf) - Lansing/Capital City Airport

Table 4-1
ALTERNATIVE RUNWAY CONFIGURATIONS
Alternative Runway Configuration
1 Existing
2 Existing with Primary Runway Extension
3 Converging Runways
4 Closely Spaced Parallel Runways
5 Dependent Parallel Runways
6 Independent Parallel Runways
Each alternative is evaluated in the following sections.
Capital Region Airport Authority
Capital City Airport Master Plan Update
1. Existing
The existing airfield includes the current runway configuration and lengths. The existing airfield has
distinct large and small aircraft operational characteristics.
• Runway 10R/28L accommodates all aircraft using the Airport.
• Runway 10L/28R is restricted to small, predominantly general aviation aircraft. Much of the
capacity for this runway is used for touch and go training operations. The origin and
destination locations on the Airport for aircraft typically using this runway are located across
Runway 10R/28L and 6/24.
• Runway 6/24 has limited runway length and operations are limited to predominantly general
aviation and corporate aircraft. The intersection geometry of the ends of Runways 6 and 10L
are such that these runways are not usable simultaneously. Because of the prevailing winds
and the limited current demand by large aircraft, Runway 6/24 is not used extensively. Its
primary use is in high wind situations. The capacity of this runway essentially represents a
trade-off with that of Runway 10L/28R so the determination of total airfield capacity effectively
does not consider simultaneous use of these runways.
• 2. Existing With Extension
In terms of alternative consideration and evaluation, the existing configuration with primary runway
extension supersedes the existing configuration, as the extension is being implemented
independent of this master plan. However, the existing configuration is included for benchmarking
and alternative comparison purposes.
The existing airfield with the future Runway 28L extension maintains the same configuration and
the same lengths for Runways 10L/28R and 6/24. The operational characteristics are the same as
the existing configuration.
• 3. Converging Runways
An extension of 3,475 feet is added to the end of Runway 24 to produce two converging runways
capable of serving large air carrier aircraft. Airfield capacity increase through the use of converging
runways is based on an “assured landing” either holding short of, or passing the intersecting
runway before an operation can occur on the intersecting runway. Capacity is increased as the
second aircraft movement can occur while the first aircraft is still occupying its runway.
With this alternative, the Runway End 6 is shortened by as much as 700 feet to bring the runway
safety area in to compliance with FAA design standards. The shortening of this runway and
associated relocation of obstruction clearance surfaces in the approach area, results in restrictions
on developable area and aircraft movement areas in the southwest corner of the airport.
Alternatives 4-7 Final