Design traffic calculation

Question 1

How did you confirm that a type-2 NRSWA category was appropriate?

Answer 1

Calculated the design traffic using a CD224 compliant document produced by LincsLab.

Question 2

What vehicle types contribute to the design traffic calculations?

Answer 2

OGV1 + PSV and OGV 2

Question 3

What vehicles are included in OGV1?

Answer 3

HGVR2 + HGVR3

Question 4

What vehicles are included in OGV2?

Answer 4

HGVR4 + HGVA3 + HGVA4 + HGVA5 + HGVA6

Question 5

How was traffic count growthed?

Answer 5

AADT by vehicle type was entered and a predefined growth factor for each vehicle category was applied (~2%) for each year between the survey date and date of calculation

Question 6

How were the growth factors and wear factors determined?

Answer 6

Using table 2.12 and 2.18 of CD 224 for a design period of 20 years