HPMS Traffic Data Review

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HPMS Traffic Data Review

Highway Information Seminar Oct 22 - 25, 2012Patrick Zhang, P.E. 202-366-1941Office of Highway Information Policy, FHWA

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Review Objective

The HPMS traffic data review is to ensure quality and consistent data from all State highway agencies.

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Key Processes Currently Used

Roadway link/segment level traffic data – GIS tools Statewide summary level – Database and Trend

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Vehicle Miles Travelled by Roadway Types Data Sources

1: HPMS Statewide Summaries – daily VMT for rural minor collectors, rural locals, and small urban locals

2: HPMS Urban Area Summaries – urban local daily VMT

3: All Others – AADT x length of roadway segment - Full Extent Data

State total = 1 + 2 + 3

State Level VMT Data

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Example - State VMT

Example - CT 2010 Annual VMT in Million Miles

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Interstate

2 - PA - Other

Freeways3 - PA - Other

4 - Minor Arterial

5 - Major Collector

6 - Minor Collector 7 - Local

Rural 711 333 470 500 938 156 794

Urban 9,633 3,887 3,646 5,091 2,586 21 2,528

Example - Compare to the last year

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JANUARY 2011 ( MILLIONS ) TABLE VM-2RURAL URBAN

OTHER OTHER OTHERSTATE INTERSTATEOTHER PRINCIPAL ARTERIALMINOR ARTERIALMAJOR COLLECTORMINOR COLLECTORLOCAL TOTAL INTERSTATEOTHER FREEWAYSOTHER PRINCIPAL ARTERIALMINOR ARTERIALMAJOR COLLECTORLOCAL TOTAL TOTAL

ARTERIAL ARTERIAL COLLECTORCOLLECTOR EXPRESSWAYSARTERIAL ARTERIAL COLLECTORAlabama -0.51% -2.37% -2.74% 4.71% -1.51% -1.53% -0.69% -1.32% 15.49% 3.65% 2.88% 13.78% 0.77% 2.86% 1.17%Alaska 1.25% -9.72% 30.47% -14.98% 0.97% 1.05% -1.43% -0.69% 52.37% -42.02% -24.75% -1.50% -6.70% -4.28%Arizona -1.86% 4.83% -1.97% -0.83% -0.90% -6.09% -0.82% -0.94% 1.76% -2.54% -1.46% -0.98% 1.88% -0.65% -0.70%Arkansas 2.19% -4.95% -4.91% -4.26% 1.28% 4.40% -1.92% -0.73% -5.25% 0.21% -1.80% -3.42% -0.98% -1.30% -1.65%California -3.55% -1.45% -4.05% -0.18% -1.41% -17.55% -3.09% -0.68% 0.33% 1.46% -0.33% -0.15% -3.64% -0.10% -0.64%Colorado 3.56% 1.55% -5.62% 2.71% 0.99% 0.94% 0.95% 1.27% 0.24% -1.68% -4.24% -5.85% -1.47% -1.47% -0.71%Connecticut -1.70% 1.15% 2.06% 0.13% 0.95% -0.38% 0.18% -1.05% -1.21% 1.69% 0.46% 0.19% -1.82% -0.38% -0.31%Delaware 0.00% 4.17% 4.16% 2.63% 2.12% 8.66% 4.41% 5.99% 11.51% 1.44% 1.04% -1.02% -18.98% -0.68% 0.90%Dist. of Columbia 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% -10.95% 2.41% 1.46% -2.61% -1.48% 4.11% -0.63% -0.63%Florida -0.18% -3.36% -2.00% -0.09% -9.78% 0.35% -1.67% -0.49% 0.60% -1.56% -3.95% -7.25% -0.23% -2.06% -1.99%Georgia -4.15% 0.71% -1.04% -2.51% -2.32% 0.18% -1.65% -1.11% 1.87% -2.20% -1.70% -0.30% -9.73% -3.55% -2.93%Hawaii 0.88% -6.26% -4.84% 0.97% 6.81% 1.29% -1.89% 0.26% 0.31% -0.01% 0.16% -2.04% 1.40% 0.18% -0.33%Idaho -0.25% -1.22% -3.59% 11.29% 0.45% -2.76% 0.38% 1.08% -0.49% 1.10% 19.37% -5.62% 1.52% 0.86%Illinois -1.79% -0.98% -1.23% -2.20% -4.08% -0.95% -1.57% -4.01% -8.82% -1.94% -2.34% -0.09% -3.29% -2.70% -2.41%Indiana 2.92% -1.42% 1.51% 3.98% -1.73% 0.34% 1.51% 4.44% -3.80% 2.19% -0.16% -4.81% -0.29% 0.63% 0.96%Iowa -0.03% 0.59% -0.15% -0.21% -1.21% -0.58% 0.01% -0.74% -1.21% -1.02% -1.18% -0.42% -0.93% -0.36%Kansas 0.20% 1.28% -0.84% 2.26% 1.59% 1.16% 0.89% -0.19% 0.94% 1.59% 0.78% 0.33% -4.16% -0.05% 0.41%Kentucky 6.82% -2.40% 1.23% -2.31% -2.06% -0.90% 0.48% -2.01% 4.12% 1.35% -0.33% 1.79% -4.07% -0.39% 0.11%Louisiana -1.18% 9.25% 17.52% 10.35% -0.31% -2.51% 5.36% -3.38% 42.44% 3.54% -4.15% -2.72% 8.13% 0.20% 2.36%Maine -1.88% -1.60% -1.59% -2.70% -2.14% -0.05% -1.73% -3.98% 3.34% -3.28% -4.13% -2.30% -1.28% -2.95% -2.07%Maryland -1.20% -2.12% -2.28% -0.75% -0.35% -0.26% -1.36% -0.24% 2.49% 0.89% 0.44% 2.10% -0.29% 0.69% 0.17%Massachusetts -6.59% 2.65% 1.03% -0.03% 0.10% 0.04% -1.59% 1.17% 1.39% 0.76% 1.14% 1.70% 0.21% 0.99% 0.79%Michigan -8.57% -9.82% -9.20% -0.84% 0.00% 0.38% -6.10% -0.15% 5.58% -1.99% -1.45% -12.07% 1.19% -1.32% -2.88%Minnesota 0.28% -0.03% -0.40% -0.35% -0.25% 1.04% -0.01% -0.43% -4.14% 3.25% 0.15% 0.59% 1.41% 0.17% 0.09%Mississippi -1.65% 2.92% -3.44% -2.46% 0.60% -4.30% -1.63% -2.45% -5.49% -3.87% 2.29% -3.00% -8.99% -3.71% -2.49%

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Example - VMT changes by roadway types

VMT Percentage Changes from 2010 by Roadway Types

RURAL

INTERSTATE

OTHER PRINCIPAL ARTERIAL

MINOR ARTERIAL

MAJOR COLLECTOR

MINOR COLLECTOR LOCAL TOTAL

-0.51% -2.37% -2.74% 4.76% -1.51% -1.53% -0.68%

URBAN

INTERSTATEOTHER

FREEWAYS

OTHER PRINCIPAL ARTERIAL

MINOR ARTERIAL

MAJOR COLLECTOR LOCAL TOTAL

-1.32% 15.49% 3.65% 2.88% 13.78% 0.77% 2.86%

Grand TOTAL1.17%

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Example – State VMT Historical Trends by Roadway types

1Rural Interstate 2Other Rural Arterial 3Other Rural4Urban Interstate 5Other Urban Arterial 6Other Urban

NANational Average RARegional Average 10=2010

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VMT by Vehicle Types

• 6 Vehicle TypesMotorcycle, Passenger Car, Light Truck, Bus, Single Unit Truck, Combination Truck• 6 Roadway Types

3 Rural Roadway Types, 3 Urban Roadway Types• Roadway Type Merges

VM-1 Roadway Types VM-2 Roadway TypesInterstate (1) Interstate

Other Arterial (2) PA - Other Freeways +

(3) PA – Other + (4) Minor Arterial

Other Urban (rural) (5) Major Collector +

(6) Minor Collector + (7) Local

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Example – State Vehicle Summary Data

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Calculate VMT by Vehicle Types & Roadway Types

VMT by vehicle types

= % by vehicle type x VMT by road types Example:

16941 Rural Interstate VMT

X times the percentages

MotorCyclePassenger

Car Light Truck Bus Single UnitCombination

Truck Total0.49% 62.82% 19.50% 0.21% 3.90% 13.08% 100.00%

Rural Interstate VMT by Vehicle Types83.0 10642.3 3303.5 35.6 660.7 2215.9 16941

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Example – Percentage of Single Unit Truck showing dramatic changes

Example – Single Unit Truck VMT

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State X

Box Plot for 6 Vehicle Types

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Example – dramatic changes

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Example – Unusual High /Low

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Example – 1. decimal issues 2. other urban bus % = 0%

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Example – lower class roads have more Combination Truck

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Example – Lower class roads have more Combination Truck

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Questions?

Patrick [email protected]

202-366-1941