The use of the probability theory in road construction

Probability theory is used in road construction in basically three fields, i.e. statistical quality control schemes, correlation of inter-laboratory test results and the determination of the probability of failure, settlement, etc. This paper deals mainly with the second point in which the following methods of correlating laboratory test results are discussed. Using the normal distribution of Student’s t tests on differences Using the analysis of variance Drawing a regression curve to visually display correlation and determination of the correlation coefficient