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Publication Number: FHWA-HRT-05-079
Date: May 2006

Optimization of Traffic Data Collection for Specific Pavement Design Applications

Appendix A. CARD-4 and CARD-7 Descriptions

 

Table 33. Card-4: Vehicle classification record.
Columns Width Description
1 1 Vehicle classification record code (4)
2-3 2 State code
4-5 2 Functional classification
6-8 3 Station identification number
9 1 Direction of travel
10-11 2 Year of data
12-13 2 Month of data
14-15 2 Date of month
16-17 2 Hour of day
18-19 2 Number of motorcycles (optional)
20-23 4 Number of passenger cars or all two-axle, four-tire, single-unit vehicles
24-26 3 Number of other two-axle, four-tire, single-unit vehicles
27-28 2 Number of buses
29-31 3 Number of two-axle, six-tire, single-unit trucks
32-33 2 Number of three-axle, single-unit trucks
34-35 2 Number of four- or more axle, single-unit trucks
36-37 2 Number of four- or less axle, single-trailer trucks
38-40 3 Number of five-axle, single-trailer trucks
41-42 2 Number of six- or more axle, single-trailer trucks
43-44 2 Number of five- or less axle, multi-trailer trucks
45-46 2 Number of six-axle, multi-trailer trucks
47-48 2 Number of seven- or more axle, multi-trailer trucks
49 1 Motorcycle reporting indicator
50 1 Vehicle class combination indicator
51 1 Lane of travel: 0 = combined lanes, 1 = outside (rightmost) lane, 2 through 9 = other lanes in order toward innermost lane
52-80 31 Blank or optional State data

 

Table 34. Card-7: Truck weight record.
Columns Width Description
Face Record
1 1 Truck weight record code (7)
2-3 2 State code
4-5 2 Functional classification
6-8 3 Station identification number
9 1 Direction of travel
10-11 2 Year of data
12-13 2 Month of data
14-15 2 Date of month
16-17 2 Hour of day
18-23 6 Vehicle type code
24-27 4 (open)
28 1 Day of week (optional)
29-34 6 (open)
35 1 Lane of travel
36-41 6 (open)
42-45 4 Total weight of truck or combination
46-48 3 A axle weight (hundreds of pounds)
49-51 3 B axle weight (hundreds of pounds)
52-54 3 C axle weight (hundreds of pounds)
55-57 3 D axle weight (hundreds of pounds)
58-60 3 E axle weight (hundreds of pounds)
61-63 3 A-B axle spacing (feet and tenths)
64-66 3 B-C axle spacing (feet and tenths)
67-69 3 C-D axle spacing (feet and tenths)
70-72 3 D-E axle spacing (feet and tenths)
73-76 4 Total wheelbase (feet and tenths)
77-79 3 Record serial number
80 1 Continuation indicator: 0 = no continuation record, 1 = has a continuation record
Continuation Record*
1-23 23 Same as columns 1 through 23 of the face record
23-28 5 (open)
29-31 3 F axle weight (hundreds of pounds)
32-34 3 G axle weight (hundreds of pounds)
35-37 3 H axle weight (hundreds of pounds)
38-40 3 I axle weight (hundreds of pounds)
41-43 3 J axle weight (hundreds of pounds)
44-46 3 K axle weight (hundreds of pounds)
47-49 3 L axle weight (hundreds of pounds)
50-52 3 M axle weight (hundreds of pounds)
53-55 3 E-F axle spacing (feet and tenths)
56-58 3 F-G axle spacing (feet and tenths)
59-61 3 G-H axle spacing (feet and tenths)
62-64 3 H-I axle spacing (feet and tenths)
65-67 3 I-J axle spacing (feet and tenths)
68-70 3 J-K axle spacing (feet and tenths)
71-73 3 K-L axle spacing (feet and tenths)
74-76 3 L-M axle spacing (feet and tenths)
77-79 3 Record serial number (same as face record)
80 1 Continuation indicator: 2 = first continuation record for a vehicle with more than 13 axles, 9 = last continuation record

a Used only for truck combinations having six or more axles. Immediately follows the face record.

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