Worksheet 4A: Predicted Crashes by Collision and Site Type and Observed Crashes Using the Project-Level EB Method for Urban and Suburban Arterials (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) Npredicted Predicted crashes Observed Npredicted w1 W0 N0 w1 N1 w0 crashes, Overdispersion comb Collision type / Site type Nobserved Parameter, k N N N (crashes/year) Equation A-8 Equation A-9 Equation Equation Equation Equation Equation (FI) (PDO) (6)*(2)2 sqrt((6)*(2)) A-10 A-11 A-12 A-13 A-14 ROADWAY SEGMENTS Multiple-vehicle nondriveway Segment 1 -- -- -- -- -- -- Segment 2 -- -- -- -- -- -- Segment 3 -- -- -- -- -- -- Segment 4 -- -- -- -- -- -- Single-vehicle Segment 1 -- -- -- -- -- -- Segment 2 -- -- -- -- -- -- Segment 3 -- -- -- -- -- -- Segment 4 -- -- -- -- -- -- Multiple-vehicle driveway-related Segment 1 -- -- -- -- -- -- Segment 2 -- -- -- -- -- -- Segment 3 -- -- -- -- -- -- Segment 4 -- -- -- -- -- -- INTERSECTIONS Multiple-vehicle Intersection 1 -- -- -- -- -- -- Intersection 2 -- -- -- -- -- -- Intersection 3 -- -- -- -- -- -- Intersection 4 -- -- -- -- -- -- Single-vehicle Intersection 1 -- -- -- -- -- -- Intersection 2 -- -- -- -- -- -- Intersection 3 -- -- -- -- -- -- Intersection 4 -- -- -- -- -- -- COMBINED (sum of -- column)
Worksheet 4A: Predicted Crashes by Collision and Site Type and Observed Crashes Using the Project-Level EB Method for Urban and Suburban Arterials (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) Collision type / Site type Predicted crashes Observed crashes, Nobserved (crashes/year) Overdispersion Parameter, k Npredicted w0 Npredicted w1 W0 N0 w1 N1 comb N N (FI) N (PDO) Equation A-8 (6)*(2)2 Equation A-9 sqrt((6)*(2)) Equation A-10 Equation A-11 Equation A-12 Equation A-13 Equation A-14 ROADWAY SEGMENTS Multiple-vehicle nondriveway Segment 1 -- -- -- -- -- -- Segment 2 -- -- -- -- -- -- Segment 3 -- -- -- -- -- -- Segment 4 -- -- -- -- -- -- Single-vehicle Segment 1 -- -- -- -- -- -- Segment 2 -- -- -- -- -- -- Segment 3 -- -- -- -- -- -- Segment 4 -- -- -- -- -- -- Multiple-vehicle driveway-related Segment 1 -- -- -- -- -- -- Segment 2 -- -- -- -- -- -- Segment 3 -- -- -- -- -- -- Segment 4 -- -- -- -- -- -- INTERSECTIONS Multiple-vehicle Intersection 1 -- -- -- -- -- -- Intersection 2 -- -- -- -- -- -- Intersection 3 -- -- -- -- -- -- Intersection 4 -- -- -- -- -- -- Single-vehicle Intersection 1 -- -- -- -- -- -- Intersection 2 -- -- -- -- -- -- Intersection 3 -- -- -- -- -- -- Intersection 4 -- -- -- -- -- -- COMBINED (sum of column) --
HSM-Ch12-Tables_urban-suburban-arteries.docx