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Version date 7/02/
FLEXIBLE PAVEMENT DESIGN FOR
program date 5/15/
Enter Airport Name AC Method
Enter City, State
Engineer - Enter Engineering Firm and Engineer AIP No. Enter AIP Project Number
Enter Comments
no aircraft data entered"Total Thickness Required (inches)
No thickness adjustments required
Stabilized Base/Subbase Are Not Required
Initial Pavement Cross Section Stabilized or Modified Cross Section Factors
0" Pavement Surface Layer (P-401) 0" P-401 Plant Mix Bituminous Pavements
15" Base Layer (P-209) 10" P-401, Plant Mix Bituminous Pavements 1.
#VALUE! Subbase #1 (P-154) CBR= 20 ### P-209, Crushed Aggregate Base course 1.
#VALUE! Subbase #2 CBR= 0 ### Material as defined by user
#VALUE! Subbase #3 CBR= 0 ### Material as defined by user
Frost Considerations
110 lb/cf Dry Unit Weight of Soil
500 Degree Days ºF
33.21" Frost Penetration Depth
5 Original CBR value of subgrade Soil
5 CBR Value used for the Subgrade Soil Non-Frost Code for Subgrade Soil
20 CBR Value used for subbase #1 Non-Frost code for Subbase #
0 CBR Value used for subbase #2 Non-Frost code for Subbase #
0 CBR Value used for subbase #3 No frost selection made for Subbase #
Design Aircraft Information
The Design Aircraft is a NONE -- ( )
0 lbs Gross Weight 20 Design Life (years)
0 Equivalent Annual Departures
Subgrade Compaction Requirements for Design Aircraft
Non-Cohesive Soils Cohesive Soils
Compaction Depth Required Compaction Depth Required
This software is currently under development and is not officially adopted as a FAA standard. Designs developed using this
program should be checked against AC 150/5320-6D to insure accuracy and conformance to existing standards
1 Number of subbases
Frost Value used
20 cbr for subbase 1 0 20
0 cbr for subbase 2 0 0
0 cbr for subbase 3
Data is entered into this speadsheet from visual basic commands
0 subgrade frost CBR
Non-Frost Code for Subgrade Soil
Non-Frost code for Subbase #
Non-Frost code for Subbase #
No frost selection made for Subbase #
SUBGRADE COMPACTION REQUIREMENTS
weight 0
gear type 1
wt wt gear ** 100 95 90
min 30000 8 18 32
max 0 0 0 0
0 stablilized base required?
1 + yes 0 = no P-154 as default subbase material (CBR=20+)
Recommended Equiv. Factor ranges for high Quality Granular Su
P-208, Aggregate Base Course
P-209, Crushed Aggregate Base Course
P-211, Lime Rock Base Course
P-154 as default subbase material (CBR=20+)
( if subbase 1 CBR = 0 then default of 20 is use) Recommended Equiv. Factor ranges for stablized subbase
15 Thickness required above subbase #1 1 P-301, Soil Cement Base Course
0 Thickness required above subbase #2 2 P-304, Cement Treated Base Course
0 Thickness required above subbase #3 3 P-306, Econocrete Subbase Course
4 P-401, Plant Mix Bituminous Pavements
5 Not stabilized -- P-
6 P-208, Aggregate Base Course
7 P-209, Crushed Aggregate Base course
8 P-211, Lime Rock Base Course
P-209 as default Base material (CBR=80+)
Recommended Equiv. Factor ranges for Granular Base
1 P-304, Cement Treated Base Course
2 P-306, Econocrete Subbase Course
3 P-401, Plant Mix Bituminous Pavements
4 Not stabilized
cohesive
Enter Traffic Mix
Enter up to 21 aircraft (in any order) also enter Max weight & Annual Departures
User's name for Aircraft (optional)
e.g. Citation IV Aircraft grouping ---- Gear type
AC
150/5320-6D
Default
Weight Max Takeoff weight MTOW Annual Departures Thickness Required for Each Individual Aircraft
Step 7 Step 8
Step 6 ENTER AIRCRAT DATA
(below)
low wt high wt table wt
TOTAL THICKNESS FOR BOEING747, 780000 lbs LIFE = 20 yrs cbr = 6
ANNUAL DEPARTURES OF EQUIVALENT 300,000 LB DUAL TANDEM
TOTAL PAVEMENT SECTION THICKNESS (in)
Enter Airport Name AIP Number AC Method
Enter City, State Enter AIP Project Number
Enter Comments
INPUT VALUES CALCULATED VALUES
Widebody? if sw% load on main gear
n 0 0 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
n 0 0 ### 0 0.00 0 0 0 0
Equivalent Annual Departures of the 0
Design Aircraft --- /---
Additional aircraft Aircraft grouping ---- Gear type
AC
150/5320-6D Max Takeoff weight MTOW Annual Departures Gear Type (code) MTOW used by design Departures of equiv gear Computed wheel Load of aircraft Equiv. annual departures of design Aircraft
TOTAL THICKNESS FOR BOEING747, 780000 lbs -- 1119544 Departures of Equiv. Dual Tandem
at 300,000 lbs LIFE = 20 yrs
CBR value
Total Thickness (inchs)
Select Aircraft group-gear type
Design Load 0
CBR 5 20 Input design Life (years)
Annual Departures 0 #N/A <== 20 year departures using pass/coverage ratio
ESWL Calculations
Assumed thickness (x)
Y1 Y2 Y3 Y4 revised x
1 if x <= 30 0 0 0 0 1.
0 if 30<x<=60 0 0 0 0 0
60<x<=90 0 if 60<x<=90 0 0 0 0 0
x>90? 0 if x>90? 0
Calculate Thickness Required
Thickness diff
CP<=0.22 0 #DIV/0! #DIV/0! N/A
CP> 0.22 1
CL = #VALUE!
CL<0 #VALUE! ### #VALUE!
Final Total Thickness
x <= 30
30<x<= 60
ITW WPN ICW CA 500 500 25.
A1 A2 A3 Y = 6000 30.
Calculate XP CP 7500 31.
#DIV/0! no aircraft data entered 8000 8000 31.
CLA
#N/A Rev CLA HA =
CLA>4 #N/A #N/A #N/A
CLA< 1 #N/A #N/A #N/A
1<=CLA<=4 #N/A #N/A #N/A
#N/A #N/A
