Table 3: Profile of respondents.

Characteristics Categorization Number %
Job title Senior manager 18 25.71
Highway engineer 29 41.43
Contract administrator 9 12.86
University instructor 9 12.86
Undefined 5 7.14
Working experience < 5 years 21 30.00
5 - 10 years 26 37.14
11 - 20 years 13 18.57
> 20 years 7 10.00
Undefined 3 4.29
Working organization Academic institution 9 12.86
Ethiopian Road Authority (Client) 24 34.29
Consulting service 37 52.86
Undefined - -