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TTI URBAN MOBILITY
SCORECARD
2015 Report
Presented by:
Keith Nichols, PE
Principal Transportation Engineer,
TTAC Agenda Item #14
October 7, 2015
• The TTI Urban Mobility Scorecard report evaluates
mobility levels and traffic congestion in all 471
metropolitan areas throughout the U.S.
• TTI determined mobility levels using INRIX roadway
speed data as well as traffic counts and roadway
characteristics collected from FHWA’s Highway
Performance Monitoring System (HPMS).
• The report includes various recommendations to
reduce and manage congestion.
• The Urban Mobility Scorecard report is available on
TTI’s website at http://mobility.tamu.edu
2
INTRODUCTION
MEASURES REPORTED
• Hours of Delay
• Travel Time Index
• Freeway Planning Time Index
• Excess Fuel Consumed
• Congestion Costs
3
LARGE URBAN AREAS
Hampton Roads
Portland
Sacramento
Las Vegas
Denver
San Jose Kansas City
San Antonio Orlando
Tampa Bay
Riverside-San Bernardino
Milwaukee
Minneapolis-
St. Paul
St. Louis
Memphis
Baltimore
Pittsburgh Indianapolis
Austin
Nashville
Salt Lake City
Charlotte
Jacksonville
Louisville
Cincinnati
Columbus
Cleveland
• TTI defines 31 urban areas as “large” (with
populations of 1-3 million people), whereas HRTPO
uses 36 large MSAs.
Oklahoma City
Richmond
Providence
4
LARGE URBAN AREAS
Hampton Roads
Portland
Sacramento
Las Vegas
Denver
San Jose Kansas City
San Antonio New Orleans Orlando
Tampa
Riverside-San Bernardino
Milwaukee
Minneapolis-
St. Paul
St. Louis
Memphis
Baltimore
Pittsburgh Indianapolis
Austin
Nashville
Salt Lake City
Charlotte
Jacksonville
Raleigh
Louisville
Cincinnati
Columbus
Cleveland
Buffalo Providence
• TTI defines 31 urban areas as “large” (with
populations of 1-3 million people), whereas HRTPO
uses 36 large MSAs.
Oklahoma City
Richmond
Tuscon Birmingham
Hartford
San Diego
Rochester
4
0
10
20
30
40
50
60
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
An
nu
al
De
lay
pe
r P
ea
k A
uto
Co
mm
ute
r (h
rs)
Annual Hours of Delay per Peak Auto Commuter, Hampton Roads
ANNUAL DELAY
Annual Hours of Delay per Peak Auto Commuter
Hampton Roads, 2005-2014
An
nu
al
Ho
urs
of
Dela
y
Data source: TTI.
• Hampton Roads had 45 hours of delay per peak period
auto commuter in 2014.
5
ANNUAL DELAY
0
10
20
30
40
50
60
70
An
nu
al
Ho
urs
of
De
lay
pe
r P
ea
k A
uto
Co
mm
ute
r
Annual Hours of Delay Per Peak Auto Commuter,
Large Urban Areas, 2014
• Hampton Roads ranked 11th among the 36 large
metropolitan areas in delay per auto commuter in
2014.
Annual Hours of Delay per Peak Auto Commuter
Large MSAs, 2014
An
nu
al
Ho
urs
of
Dela
y p
er
Peak
Au
to C
om
mu
ter
Data source: TTI.
6
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
Tra
vel Tim
e I
nd
ex
Travel Time Index,
Large MSAs, 2014
TRAVEL TIME INDEX
• The average peak period trip takes 19% longer than
the same trip during the non-peak periods in Hampton
Roads.
Travel Time Index
Large Urban Areas, 2014
Tra
vel
Tim
e I
nd
ex
Data source: TTI.
7
$0
$100
$200
$300
$400
$500
$600
$700
$800
$900
$1,000
$1,100
$1,200
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
An
nu
al
Co
ng
esti
on
Co
sts
Pe
r A
uto
Co
mm
ute
r
Annual Congestion Costs Per Peak Auto Commuter, Hampton Roads
CONGESTION COSTS
• Congestion cost each Hampton Roads auto commuter
an estimated $953 in 2014.
Annual Congestion Costs Per Peak Auto Commuter
Hampton Roads, 2005-2014 (in constant 2014 $)
An
nu
al
Co
ng
est
ion
Co
sts
Data source: TTI.
8
$0
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
Congestion Costs,
Large MSAs, 2014
• Hampton Roads ranked 23rd among the 36 large
metropolitan areas in delay per auto commuter in
2014.
10
Congestion Costs per Peak Auto Commuter
Large Urban Areas, 2014
Co
ng
est
ion
Co
sts
Data source: TTI.
CONGESTION COSTS
9
STUDY CRITIQUES
• The Urban Mobility Scorecard only focuses on
drivers and fails to account for commute mode
share.
• The report compares peak-period conditions to free-
flow speeds.
• TTI looks at roadway congestion levels, but does not
take into account the actual commute time and
average commute trip length.
10
Chicago Travel Time Index = 1.31
Atlanta Travel Time Index = 1.24
0%
5%
10%
15%
20%
25%
30%
35%
40%
Tom
To
m T
raff
ic I
nd
ex
Tom Tom Traffic Index,
Large MSAs, 2014TomTom Traffic Index
Large Urban Areas, 2014
To
mT
om
Tra
ffic
In
dex
Data source: TomTom.
TOMTOM TRAFFIC INDEX
• Based on TomTom and AutoNavi GPS Data
• Measures “Congestion Level”, which compares the
increase in travel times to free flow conditions
(similar to the Travel Time Index)
11
TTI Travel Time Index
Large MSAs, 2014
Tra
vel
Tim
e I
nd
ex
Data source: TTI.
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
Tra
vel Tim
e I
nd
ex
Travel Time Index,
Large MSAs, 2014
FHWA URBAN CONGESTION REPORT
• Based on FHWA's National Performance
Management Research Data Set (NPMRDS), which
uses HERE speed data.
12
TTI URBAN MOBILITY
SCORECARD
2015 Report
Presented by:
Keith Nichols, PE
Principal Transportation Engineer,
TTAC Agenda Item #14
October 7, 2015
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