1 Part 4 HPMS Vehicle Summary Data Computation
Additional Columns 2 Ucode=if(urban_code=99999, “Rural”, “Urban”) VMT=(end_point-begin_point)*AADT SUVMT=(end_point-begin_point)*SUAADT CTVMT=(end_point-begin_point)*CTAADT
Step 1: Calculate VMT using HPMS data by county and Function class (facility = 1, 2, 3) 3
Pivot Table Layout 4
Step 1: VMT by County and Function Class 5
Step 2: Select * if IS_Sample=1 or AADT_Combination_vn<>0 6
Pivot Table Layout 7
Truck VMT for Sample Panel Data 8
Step 2 – Continue Truck VMT% for Sample Panel Data 9
Step 3. Vehicle Class Data Analysis 10 It is recommended to use annualized count or adjusted count to a common time period: per day or per 48 hour It is extremely important to use the same time period for all stations Use simple average of vehicle % within county is not recommended
Vehicle Class Data Analysis – Annualized and Seasonal Adjusted AADT and Vehicle Count Data 11
Pivot table layout 12
Total Daily Counts by County and Function Class Pivot Table 13
Daily Count Vehicle % 14
Step 4: Combine Class Data and Truck AADT% Data 15 Adopt MC%, Car%, Light Truck% and Bus% data from class data Single Unit Truck% = Single Unit Vehicle% – Bus% Passenger Car% = 1 - MC% - LT% - Bus% - SUV% - CT% Borrow vehicle % data from similar county if no there are no data available
Function Class 1, 2, 3 and 4 16
R5, U5 and U6 17
Or R5, U5 and U6 18
R6, R7 and U7 (VMT data are statewide so no weighting) 19
Group VMT of Functional Classes (FC) to FS_Group 20
Step 5: Produce Vehicle Summary Data 21
Summary 22 VMT by county and function class (total VMT) Truck VMT% for sample panel data (sample panel VMT) Vehicle class count data analysis (common time period) Combine AADT truck % data with vehicle class count data for all road function classes Derive the VMT by vehicle for all function class Group VMT by function class group and vehicle class group to obtain VMT and VMT%
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