Overview
• Detailed description of Cost Matrices– Commuter– Transportation– Accessibility
• Steps to building a simulation and understanding your results
Commuter Cost Matrix
• Captures changes to time per trip for off-the-clock, work-related trips.
• Calculated through VHT/Trips
• Think—Would NYC still be a financial center without its subway system?
Transportation Cost Matrix
• Captures the on-the-clock business travel and transport of goods.
• Calculated in two ways:– Ratio of VMT to VHT
between alternate and baseline scenarios
– Cost per trip of commercial truck deliveries
Accessibility Cost Matrix
• Calculates changes in access to intermediate inputs and consumer goods
• Explains residual bias toward local suppliers
• Calculated through Trips/VHT
Accessibility Cost Matrix
Baseline value calculated with REMI dynamic estimation to estimate distance deterrence factors which are normalized to 1.
Capturing Mobility Benefits of Long-Range Plans (1)
• Step 1-Importing Travel Files– “maintenance
only” base case– “maintenance +
capacity improvement” alternate case
Capturing Mobility Benefits of Long-Range Plans (2)
• Step 2-Identifying Adjustments to Simulation Options– Emissions– Safety– Operating Costs– Value of Time– Cost Matrices
Capturing Mobility Benefits of Long-Range Plans (3)
• Step 3- Understanding the Results– Analytical graphs– Labor productivity?– Sector sensitivity to
transportation?– Industrial
composition?– Cross-regional
benefits?
Capturing Mobility Benefits of Long-Range Plans (3)
Coming Up Next Time
• Session 3: Client Application– Step-by-step walkthrough of two road
projects– comparing benefits and costs
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