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// Exa 2.6
//To find traffic intensity in Erlangs and CCS during eight hour period and busy hour(4:00 PM to 5:00 PM).
//Refer-Table 2.2(page no 28): Traffic on customer line between 9:00PM and 5:00PM
clc;
clear all;
time=8; //in hours
calls=11; //no of calls in 90mins period
//solution
CR=calls/time; //call arrival rate in calls/hour
tavg=(3+10+7+10+5+5+1+5+15+34+5)/11; //average call holding time in mins per call
I= CR*(tavg/60); //traffic intensity in Erlangs
printf('Traffic Intensity during eight hour period is %.3f Erlangs = %.1f CCS \n',I,I*36);
//For Busy Hour i.e between 4:00PM and 5:00PM
CRB=2; //call arrival rate during busy hour in calls/hour(from table 2.2)
tavgB=(34+5)/2; //average holding time during Busy Hour in mins/call (from table 2.2)
IB=CRB*(tavgB/60); //Traffic Intensity during Busy Hour
printf(' Traffic Intensity during busy hour is %.2f Erlangs = %.1f CCS',IB,IB*36);
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