Flexible Pavement Structural Number Calculator
Calculate the structural number of a flexible pavement with the values of thickness and layer co-efficients of asphalt, base, sub base and additional layers.
Structural Number of Flexible Pavement Calculation
Calculate the structural number of a flexible pavement with the values of thickness and layer co-efficients of asphalt, base, sub base and additional layers.
Code to add this calci to your website
Formula:
L=a1ta + b1tb + c1tsb +d1tad
Where,
L=Structural Number of Flexible pavement,
a1=Layer coefficient for asphalt ,
ta=Asphalt layer thickness,
b1=Layer coefficient of base,
tb=Base layer thickness ,
c1=Layer coefficient of sub-base,
tsb=Sub-base layer thickness,
d1=Layer coefficient of additional layer,
tad=Thickness of additional layer
Flexible pavement structural number calculation is made easier here.
Calculator 
Formula 
