Interim Runway Safety Area Study September 2017
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Interim Runway Safety Area Study September 2017 INTERIM RUNWAY SAFETY AREA STUDY YEAGER AIRPORT PREPARED FOR: THE CENTRAL WEST VIRGINIA REGIONAL AIRPORT AUTHORITY PREPARED BY: LANDRUM & BROWN TEAM SEPTEMBER 2017 YEAGER AIRPORT INTERIM RUNWAY SAFETY AREA STUDY DRAFT TABLE OF CONTENTS PAGE INTRODUCTION.................................................................................... 1 1. EXECUTIVE SUMMARY .................................................................. 1 2. RUNWAY SAFETY AREA STUDY (RSA STUDY) OBJECTIVES ................ 2 3. RUNWAY AND RSA BACKGROUND .................................................. 2 4. RSA STANDARDS ......................................................................... 6 5. EXISTING CONDITIONS ................................................................ 7 6. RUNWAY LENGTH REQUIREMENTS ................................................. 9 6.1 RUNWAY LENGTH METHODOLOGY AND ASSUMPTIONS ............................ 9 6.1.1 DENSITY ALTITUDE ....................................................................... 9 6.1.2 RUNWAY CHARACTERISTICS ........................................................ 10 6.1.3 FLEET MIX .................................................................................. 11 6.2 TAKEOFF RUNWAY LENGTH REQUIREMENTS ........................................ 14 6.3 RUNWAY LANDING LENGTH REQUIREMENTS ........................................ 16 6.4 STAKEHOLDER INPUT ........................................................................ 18 6.4.1 AIRLINE AND CARGO OPERATORS ................................................. 18 6.4.2 GENERAL AVIATION ..................................................................... 20 6.4.3 MILITARY ................................................................................... 20 6.5 OVERALL RUNWAY LENGTH CONCLUSIONS .......................................... 21 7. GLIDE SLOPE REQUIREMENTS AND EFFECT ON RUNWAY LENGTH .................................................................................... 23 8. ALTERNATIVES .......................................................................... 25 8.1 METHODOLOGY ................................................................................ 25 8.2 2003 RSA STUDY ALTERNATIVES ........................................................ 26 8.3 ALTERNATIVES CONSIDERATIONS ...................................................... 27 8.3.1 ADDITIONAL RSA LENGTH ............................................................ 27 8.3.2 STANDARD LENGTH EMAS ............................................................ 28 8.3.3 REDUCED LENGTH EMAS .............................................................. 30 8.3.3 RSA INCIDENT DATA ................................................................... 32 8.4 INITIAL ALTERNATIVES ..................................................................... 33 8.4.1 ALTERNATIVE 1: CONSTRUCTION STANDARDS ............................... 33 8.4.2 ALTERNATIVE 2: REDUCE RUNWAY UNDERSHOOT RSA .................... 34 September 2017 Page i Draft – For Discussion Purposes Only YEAGER AIRPORT INTERIM RUNWAY SAFETY AREA STUDY DRAFT TABLE OF CONTENTS PAGE 8.4.3 ALTERNATIVE 3: REDUCE RUNWAY OVERRUN RSA .......................... 35 8.4.4 ALTERNATIVE 4: AIRPORT PROPOSAL ............................................ 36 8.4.5 ALTERNATIVE 5: 215-FOOT EMAS BED ALTERNATIVE ...................... 37 8.5 EVALUATION OF INITIAL ALTERNATIVES ............................................. 38 8.6 REFINED EMAS ALTERNATIVES ........................................................... 42 8.6.1 ALTERNATIVE 6: 180-FOOT EMAS WITH 100-FOOT EXTENSION AND RETAINING WALL .............................................................. 46 8.6.2 ALTERNATIVE 7: 180-FOOT EMAS – RETAIN RUNWAY 05 GLIDE SLOPE ..................................................................................... 47 8.6.3 ALTERNATIVE 8: 352-FOOT EMAS WITH STANDARD LENGTH RUNWAY 5 RSA AND 100-FOOT EXTENSION ................................ 48 8.6.4 ALTERNATIVE 9: 352-FOOT EMAS WITH STANDARD LENGTH RUNWAY 5 RSA AND 200-FOOT EXTENSION ................................ 49 8.7 EVALUATION OF REFINED ALTERNATIVES ............................................ 50 9. RECOMMENDED INTERIM SOLUTION ............................................ 54 9.1 RETAINING WALL FOR PREFERRED ALTERNATIVE ................................. 55 9.2 IMPLEMENTATION SCHEDULE ............................................................. 55 9.3 PROJECT COST ................................................................................. 59 Appendix A – Runway Length: Operator Correspondence Database Appendix B – Runway Length Charts September 2017 Page ii Draft – For Discussion Purposes Only YEAGER AIRPORT INTERIM RUNWAY SAFETY AREA STUDY DRAFT LIST OF TABLES PAGE Table 4-1 CRW Critical Aircraft Composite (C-III) ...................................... 6 Table 6-1 Passenger and Cargo Fleet Mix ................................................ 11 Table 6-2 General Aviation Fleet Mix ...................................................... 13 Table 6-3 ASDA Requirement ................................................................ 21 Table 6-4 LDA Requirement .................................................................. 22 Table 7-1 Percent Wind Coverage of Runway 23 Versus 5 ......................... 24 Table 8-1 EMAS Lengths Required to Stop an Aircraft from 70 Knots .......... 28 Table 8-2 Aircraft Evaluated for 70 Knot Stopping Distance with EMAS ....... 29 Table 8-3 Initial Alternatives Evaluation Matrix ........................................ 39 Table 8-4 Refined EMAS Alternatives ...................................................... 45 Table 8-5 Refined EMAS Alternatives Evaluation ...................................... 51 Table 9-1 Alternative 9 Project Cost ....................................................... 59 September 2017 Page i Draft – For Discussion Purposes Only YEAGER AIRPORT INTERIM RUNWAY SAFETY AREA STUDY DRAFT LIST OF EXHIBITS PAGE Exhibit 3-1 Existing Airport Configuration ................................................... 3 Exhibit 5-1 Declared Distances Post-Slope Failure ........................................ 7 Exhibit 6-1 Passenger and Cargo Takeoff Length Requirements ................... 14 Exhibit 6-2 General Aviation Takeoff Length Requirements ......................... 15 Exhibit 6-3 Passenger and Cargo Landing Length Requirements .................. 16 Exhibit 6-4 General Aviation Landing Length Requirements ......................... 17 Exhibit 8-1 Additional RSA Length............................................................ 27 Exhibit 8-2 B737-400 EMAS Planning Chart .............................................. 31 Exhibit 8-3 B737 EMAS Planning Chart ..................................................... 32 Exhibit 8-4 Alternative 1: Construction Standards ...................................... 33 Exhibit 8-5 Alternative 2: Reduce Runway Undershoot RSA Alternative ........ 34 Exhibit 8-6 Alternative 3: Reduce Runway Overrun RSA ............................. 35 Exhibit 8-7 Alternative 4: Previously Proposed Alternative .......................... 36 Exhibit 8-8 Alternative 5: 215-Foot EMAS ................................................. 37 Exhibit 8-9 Retaining Wall to Support 100-Foot Extension ........................... 43 Exhibit 8-10 Retaining Wall to Support 200-Foot Extension ........................... 44 Exhibit 8-11 Alternative 6: 180-Foot EMAS with 100-Foot Extension and Retaining Wall ....................................................................... 46 Exhibit 8-12 Alternative 7: 180-Foot EMAS – Retain Runway 05 Glide Slope ................................................................................... 47 Exhibit 8-13 Alternative 8: 352-Foot EMAS with Standard Length Runway 05 RSA and 100-Foot Extension .................................. 48 Exhibit 8-14 Alternative 9: 352-Foot EMAS with Standard Length Runway 05 RSA and 200-Foot Extension .................................. 49 Exhibit 9-1 Alternative 9 Detail ................................................................ 54 Exhibit 9-2 Retaining Wall Detail.............................................................. 56 Exhibit 9-3 Proposed Implementation Schedule ......................................... 57 September 2017 Page ii Draft – For Discussion Purposes Only YEAGER AIRPORT INTERIM RUNWAY SAFETY AREA STUDY DRAFT INTRODUCTION Yeager Airport (CRW) is a joint-use civil aviation/Air National Guard airport located three miles east of Charleston, West Virginia, the state’s capital. Owned and operated by the Central West Virginia Regional Airport Authority (CWVRAA), CRW is the largest airport in the state and generates over 174 million dollars per year in economic impact to the state. The Airport offers approximately 20 daily scheduled flights from four airlines serving domestic destinations, and more than 225,000 passengers annually.1 The Airport is also home to the West Virginia Air National Guard’s 130th Airlift Wing, an Air Mobility Command (AMC) unit, and a thriving general aviation community. The Airport serves as a vital component to the state’s transportation system and serves as a key asset to the existing and future development of the area. 1. EXECUTIVE SUMMARY On March 12, 2015, a failure of a mechanically stabilized earth retention structure (slope failure) destroyed the Runway 05 Runway Safety Area (RSA) and Engineered Materials Arresting System (EMAS).2 The EMAS was eight years old at the time and sat atop an engineered