BUSINESS SENSITIVE 1 Network Assignment of Highway Truck Traffic in FAF3 Maks Alam, PE Research Leader Battelle

BUSINESS SENSITIVE 2 Task Flow Task #1 Update the FAF Network Link Attributes Data Task 2 Pre-Assign non-FAF Traffic Counts Task 3 Truck Trips, Payload and PCE Factors Task 4 FAF3 Assignments Task 5 FAF3 Forecast Year Assignments Task 6 Documentation Deliverable #1 FAF3 Network Deliverable #2 FAF3 Network with 2007 Assignments Deliverable #3 FAF3 Network with 2040 Forecast Assignments Deliverable #4 Technical Report

BUSINESS SENSITIVE 3 Process Description Task 1: Update FAF3 Highway Network Updating of the FAF3 network for NHS, Intermodal connectors, and urban by-pass other State specific sources for major highway realignment. Integration and updating of NN designation, NHS designation changes (up to-date March 2010), LCV network designation, state truck and hazmat route designation, state truck route restriction, limited bridge clearance Task 2: Pre-Assigning non-FAF Traffic Counts to the FAF3 Network Integrate HPMS 2008 data with FAF3 network using a series of state specific route matching algorithms customized for each State. Develop algorithms to translate the HPMS traffic-flow information to the FAF network domain Calibrate state traffic flows and truck percentage at the state and urban boundaries Task 3: Truck Trips, Payload and Passenger Car Equivalency Factors Revise FAF-2 algorithms and factors using the TEP project completed for FHWA in Update the conversion tools developed by Battelle during FAF-2 to reflect the new changes in FAF-3 zone and gateways system and the range of operation by truck classes Develop Truck based O-D matrix using the TEP and allocation of tonnage by truck classes.

BUSINESS SENSITIVE 4 Process Description Task 4: Assignment of FAF3 Flows to the Highway Network Develop and update FAF-2 link specific Impedance factors Develop and identify disaggregation network specific nodes to develop 123 by 123 OD matrix to 4609 by 4609 O-D matrix Develop disaggregation factors for domestic and international movements. Use TransCAD SUE traffic assignment with passenger volume as preloaded volume on the network Calibrate flow by adjusting initial link impedance, alpha, beta values, and disaggregation factors Use BPR delay functions Multiple trial and error iteration until FAF truck flows is comparable with the state truck flows develop in task 2 Compare HPMS truck VMT with the FAF truck VMT for the base year 2007

BUSINESS SENSITIVE 5 FAF Tonnages to Truck Conversion steps 12/15/2015 Identify vehicle groups Calculate TEF -National -Regional Select major body types Calculate percent distribution by vehicle group and body type Calculate mean payloads by vehicle group and body type Calibrate mean payloads (e.g. VTRIS weight data) Analyze Regional variability

BUSINESS SENSITIVE 6 12/15/ Vehicle Groups 1.Straight trucks 2.Straight truck plus trailer 3.Tractor plus trailer 4.Tractor plus double trailers 5.Tractor plus triple trailers

BUSINESS SENSITIVE 7 12/15/2015 Major Body Types Platform (24.4%) Logging (2.1%) Tank (7.9%) Reefer (8.2%) Other (2.3%) Automobile (0.9%) Livestock (1.7%) Bulk (14.7%) Dry Van (37.7%)

BUSINESS SENSITIVE 8 12/15/ Conversion Algorithms X i tons of commodity i carried by truck type Y j and body type k = X i β ijk Number of truck type Y j and body type k to move X i β ijk tons commodity i = X i β ijk / ω ijk β ijk = fraction of commodity i moved by truck type j with body type k ω ijk = mean payload of commodity i by truck type j body type k

BUSINESS SENSITIVE 9 12/15/2015 FAF3: Task 3 Truck Trips, Payload and PCE 9 Conversion Algorithms - Continue

BUSINESS SENSITIVE 10 BUSINESS SENSITIVE FAF-3 Freight Travel Demand Model FAF 3 O-D (123 by 123 zones) Trip Distribution Impedance Function Calibration (Use FAF -2 base TLD) Domestic International Develop O-D Share County-to-County FAF 2 O-D Matrix Disaggregation Techniques Proportioning -Truck Volume - CBP -warehouse cluster Logistical Impacts Tri-Proportional Gravity Model Gamma (combined) Function Model Validity Test Inflow/Outflow FAF 3 Network Assignment (SUE) The dotted loop portion of the figure indicates that the process is iterative until a best possible solution is accomplished Disaggregate by Domestic, Port and Border Crossings Step 1 Step 2 Step 3

BUSINESS SENSITIVE 11 Border Crossings Trip O-D nodes

BUSINESS SENSITIVE 12 Inlands and Deep Water Trip O-D nodes

BUSINESS SENSITIVE 13 FAF-3 Truck Trip O-D nodes

BUSINESS SENSITIVE 14 Domestic Flow (Preliminary)