Assuming that a limousine driver travels at an average speed of 70 miles/hr, and
ID: 89261 • Letter: A
Question
Assuming that a limousine driver travels at an average speed of 70 miles/hr, and that the driver travels an average of 10,000 miles. The statistics that the transportation industry gives for this type of activity is 4 deaths per ten million driver miles. Calculate: (a) Fatal Accident Rate (FAR) (b) Fatality Rate There are six process units in a chemical plant. The FARs for the units are given as follows: Calculate: The overall FAR for the plant. If a worker A spends 10% of the time in Unit 2, 15% in Unit 3, 30% in Unit 5, and the rest in Unit 1. What is the overall FAR in this case? In worker B spends 10% of the time in Unit 1, 35% in Unit 3, 10% in Unit 5, and the rest in Unit 4. What is the overall FAR in this case? Which worker is at most risk? Why? f there are 1000 workers in the plant, calculate the fatality rate for the whole plant. Calculate the fatality rate for worker B, assuming that 45% of the total workers follow this shift. If in Unit 5 the number of lost workdays has been 2 in the past 120 days and the total workers in this Unit are 250, find the OSHA Incidence Rate based on lost workdays.Explanation / Answer
1) a) Fatal accident rate is the number of calculated fatalities that will occur for every 100 million man-hours worked or estimated number of fatalities per 108 exposure hours (roughly 1000 employee working lifetimes)
The speed of Limousine driver is 70 miles/hr
In 108 hours, the distance covered is 70 x 108 = 7560 miles
4 deaths occur per 10 million driver miles
Therefore, the number of deaths that occur in 7560 miles is,
= (7560 x 4) / (10 x 106)
= 302040 x 10-7
= 0.003
Fatal accident rate = 0.003
b) Fatality rate represents the total number of fatalities per year.
The average driver drives for 50 years
In 50 years, the Lamousine driver drives 10,000 miles
Therefore in 1 year, the driver will drive 200 miles
There are 4 deaths per 10 million driver miles
So in 200 miles the number of deaths will be,
= (200 x 4) / (10 x 10 6)
= 800 x 10 -7
= 8 x 10 -5
The fatality rate is 8 x 10-5 per year