The following statements (S1 to S4) pertain to collision diagrams in highway traffic studies. Collision diagram are used to:
S1: Eliminate accidents
S2 : Study accident pattern
S3 : Make statistical analysis of accidents
S4 : Determine remedial measures
Which of the above statement/s is/are correct?
1
3 and 4
2
2 and 4
3
1 and 2
4
1 and 3