Spot speed survey was conducted at a particular location and following data is obtained

i) Maximum traffic volume of a week = 400000 PCU/week

ii) Average traffic volume of a week = 280000 PCU/week

iii) Maximum traffic volume of a day = 36000 PCU/day

iv) Average traffic volume of a day = 24000 PCU/day

v) Average traffic volume of an hour = 4000 PCU/hour

The daily expansion factor for the given data is