Vehicle counts were made on one direction of a 2-lane roadway three different times last Thursday. The person who made the counts produced the data that appear in the table below for your analysis. Convert the counts in the table into flow rates and average headways for each of the three time periods.

Count ID Start time End time Number of vehicles Flow rate Average time headway
H:M:S H:M:S vph
A. 7:00:00 7:45:00 511
B. 17:06:45 17:33:00 481
C. 14:16:45 14:16:45 249

What are the major differences between injection molding and extrusion?

A)-in the process of engineering design, explain the contribution of material selection. b)- explain the procedure of synthesis as is employed in engineering design. c)- is there any relationship between ergonomics and engineering design? explain. d)- safety consideration in engineering design includes human, product and the enviroment . explain how safety will be incorporated into the design?

Determine the time of the day and month of the year at which the peak sensible cooling load occurs for a top floor, north-eastern corner room of an office building in durban for the following conditions: floor area: 8 x 8 x 3 m east and north walls: 115 mm face brick (outside), 20 mm air space, 115 mm ordinary brick (inside) with 15 mm plaster roof construction: suspended plasterboard ceiling, 450 mm air space, 150 mm concrete, 75mm screed, waterproofing no heat transfer across other surfaces window area 3x 1,5 m high in north wall only. ordinary glass with venetian blinds. lights and occupants : from 07: 00 to 18: 00 average light density: 25 w/m2 number of occupants : 5 seated, light office work room temperature 24°c