Incorporating Long-Distance, Visitor, and Summer Travel...
Transcript of Incorporating Long-Distance, Visitor, and Summer Travel...
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Incorporating Long-Distance, Visitor, and Summer Travel into the new Michigan Statewide Model
June 27, 2017
Stephen Tuttle (RSG)Vince Bernardin, PhD (RSG)Jesse Frankovich (MDOT)
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Model Structure and Data-Driven Approach
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Model Components and Presentation Topics
NetworksSE Data Big Data
Big Data Pivoting
Long-Distance and Visitor
MODEL INPUTS
Short-Distance
Truck and Freight
DEMAND
ASSIGNMENT
Multi-Class Assignment
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Model Area
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Long-Distance Trips Michigan Visitor
Canada OD
Trip Generation
Destination Choice
Greater Michigan
Other USA
Greater Michigan
Other USA
Trip Generation Destination Choice
Advanced Trip-Based Framework
Not ABM, but captures some “low-hanging fruit”• Trip/Tour Purposes • Household Synthesis• Model linkages (HB -> NHB & Long-Distance -> Visitor)
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Data Sources
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Data Sources and Model Estimation
Source (2015) Long-Distance Travel Visitor Travel Summer
MI Other USA Canada
Daily HH Survey-227K Records Main 2nd 2nd
Long-Distance Recall-17K Records 2nd 2nd
AirSage-July, Oct. Weekday/end 20M unique (I,J,type)
2nd Main Main Main
Canada Border Crossing-13K Records
Main
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AirSage Expansion
Network and Daily Counts
Daily Expansion
Iterative Screenline Fitting
Parametric-Scaling
Final ODME
OD Expansion Factors
Raw AirSage
Address Trip Duration Bias
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HH Survey and Expanded AirSage
Raw AirSage**
Expanded AirSage
Household Survey
Daily Trips* 18.7 M 21.5 M 21.4 M
Trip Distance* 14.6 miles 8.2 miles 7.1 miles
*Resident, Internal, Non-Intrazonal Vehicle Trips**Raw data scaled to have zero daily percent error in assignment
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Long-Distance Travel
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Long-Distance Ground Trips (MI Residents)
HH Survey AirSage
Daily Trips 212K 213K
Distance (mi) 66 66
HH Survey AirSage LD Recall
Daily Trips 131K 106K 49K
Distance (mi) 173 157 230
50 to 100 miles
> 100 miles
*Figures exclude Air travel in HH surveys and inferred AirSage Air travel
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Long-Distance Generation
Variable Commute Business Main-tenance Leisure
Agent HH Workers ▲ ▲HH Persons ▲ ▲
Demographic Income ▲ ▲ ▲ ▲Has Children ▼ ▼ ▼Has Senior ▲ ▲
Location Urban ▼ ▼ ▼ ▼Detroit ▼ ▼ ▼ ▼Up Peninsula ▲ ▼
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AirSage Long-Distance Attractions
*only trips > 50 miles
20 MI Resident
20 Not MI Resident
Attractions
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Destination Choice: Starting Hypothesis (part 1)
Variable Business Commute Main-tenance
Leisure
Employment Accommodations 3.0 2.0 1.0Arts, Entertain… 0.5 0.1 2.5Retail & Dining 0.5 0.1 1.2 0.5Health & Social 1.0 0.9 2.0Government 1.5 1.2 1.2Other Emp 1.0 0.9 1.2
• Genetic Algorithm to estimate models• Improves fit of starting hypothesis
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Destination Choice Hypothesis (part 2)
Variable Business Commute Main-tenance
Leisure
Misc. Attr University Enroll 1.0 1.0 1.0Households 0.1 0.1 0.1 0.1GenAccess 0.1 0.3 -0.15
Location Park Area 0.5Great Lakes (mi) 0.1Interior Lake (mi) 0.5
Impedance Time -0.014 -0.016 -0.015 -0.015Distance -0.007 -0.008 -0.008 -0.008Log Distance -0.350 -0.400 -0.375 -0.375US Border X’ing -0.560 -0.200 -0.200 -0.200River Crossing -0.280 -0.100 -0.100 -0.100
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Visitor Travel
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Long-Distance Trips Michigan Visitor
Canada OD
Trip Generation
Destination Choice
Greater Michigan
Other USA
Greater Michigan
Other USA
Trip Generation Destination Choice
Long-Distance and Visitor Linkage
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Visitor vs. Long-Distance Trips
*AirSage Zones in MI excluding DTW
• Good Correlation• Not all visitor travel linked to long-distance
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Average Trip Duration vs. Distance
Longer Distance >>> Longer DurationLonger Duration >>> More Visitor Trips (per LD)
From Recall Survey (which may favor longer trips); Network distance
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Draft Visitor Model
Variable Coef.LD Trips (<100 mi) 0.24
LD Trips (100 to 200 mi) 0.57
LD Trips (200 to 500 mi) 1.12
LD Trips (>500 mi) 6.32
Retail Employment 0.063
Hotel Employment 0.207
Service Employment 0.0089 LD Distance
Visitor Trips vs. LD Distance
Visitor Trips
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Seasonal Travel
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Seasonal “Big Data” Trip Matrices
Fall AirSage Expansion
Traffic Counts Expanded
FallRaw Fall AirSage
Raw Summer AirSage
Expansion Factors
Expanded Summer
Summer AirSage Expansion
Outputs used in:1. Model Estimation2. Assignment Pivoting
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Observed Summer to Fall Ratio: LD and Visitor Trips
Long-Distance Destinations Visitor Origins
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Conclusions
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Conclusions/Innovations
• Long-Distance and Visitor linkage in an “advanced” trip-based framework
• Combine Big Data and Traditional data sources
• Initial support for using passive data to develop seasonal models
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www.rsginc.com
Contacts
www.rsginc.com
Contacts
Stephen TuttleCONSULTANT
Vince Bernardin, PhDDIRECTOR