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Full-size image of Figure 4C-2

Figure 4C-2. Warrant 2, Four-Hour Vehicular Volume (70% Factor)

This figure shows a graph depicting numerical values for Warrant 2, Four-Hour Vehicular Volume with the 70-percent factor applied if the posted or statutory speed limit or the 85th percentile speed on the major street exceeds 70 km/h (40 mph) or if the intersection lies within the built-up area of an isolated community having a population of less than 10,000 (see Section 4C.03 for further details). The figure displays three curves-one for each existing combination of approach lanes: one lane and one lane, two or more lanes and one lane, and two or more lanes and two or more lanes. The table below shows the approximate VPH on the major street and corresponding VPH on the minor street for each combination of approach lanes.

Table for Figure 4C-2
One lane and one lane Two or more lanes and one lane Two or more lanes and two or more lanes
VPH on the major street (Total of both approaches) VPH on the minor street (Higher volume approach) VPH on the major street (Total of both approaches) VPH on the minor street (Higher volume approach) VPH on the major street (Total of both approaches) VPH on the minor street (Higher volume approach)
1000 60 1000 60 or 80* 1000 80
900 60 900 65 or 80* 900 80
800 60 800 80 800 105
700 70 700 100 700 140
600 90 600 130 600 175
500 125 500 165 500 225
400 160 400 215 400 290
300 205 300 265 300 Not available
* Note: 80 vph applies as the lower threshold volume for a minor-street approach with two or more lanes and 60 vph applies as the lower threshold volume for a minor-street approach with one lane.

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