HOW TO CALUCULATE DESIGN OF FLEXIBLE PAVEMENT USING IRC METHOD???

DESIGN OF PAVEMENT USING IRCETHOD:IRC 37:2012

1.DETAILS REQUIRED FOR FLEXIBLE PAVEMENT DESIGN:

A=Initial Traffic  after completion road construction (CVPD)

P=Traffic intensity @last traffic count(7days ,24hrsclassified traffic )

r=Annual growth rate of commecial vechicles refer IRC:37 FOR THIS VALUE  

OR Take (7.5%for rurual roads,10% for urban roads)

x=Construction periods of roads 

n=Design life in years(for National highways=15years) 

                                      for express &urban=20years

                                       for other roads=10-15yrs

D=lane distributiom

f=vehicle damage factor

2.DESIGN OF FLEXIBLE PAVEMENT (IRC:37-2012):

 N=Cumulative no.of standard AXLE(Msa___million STD AXLE)

N=365*A*((1+r)^n-1/r)*D*F(for D&F values refer IRC:37pg.11&12 table no.1)

were,A=p(1+r)^x in CVPD(commercial vehciles /day)

like ex:A=1200(1+0.075)^2

A=1387CVPD

N=365*1387*(1+0.075)^20-1/0.075)*0.075*3.5

N=57Msa

Now,refer IRC:37-2012 code book  for CBR (6%)value table book

at lst u will find thickness of pavement.And draw the diagram of pavement like shown above than the design is completed HOPE THIS IS HELPFULL FOR YOUR ASSIGNEMNT!!!!!!!!!!BYEEE😁😁😁