OKI Congestion Management
Process (CMP)
Evaluating Transportation System
Performance
April 2009
Interim Report

What is the CMP?
Required by SAFETEA-LU

 Provides for the systematic review of
transportation system performance
 Identify and evaluate strategies to
address roadway congestion
 In air quality nonattainment areas, no
Federal funds for new SOV capacity
unless addressed through CMP.

Performance Measures
Travel Model (Base Year and

Forecasted)
◦ level-of–service
◦ Peak travel times
Observed

◦ Peak travel times
◦ Travel speed
◦ Travel Delay
◦ Comparison with previously observed
conditions
◦ ARTIMIS – annual vehicle delay due to

Observed Data: Collection
Methodology
Staff use of GPS units

 Vehicle position recorded once per
second.
 AM and PM peak measurements
 Mid-day peak measurement
 Only “typical” travel conditions

Sources of Congestion - US
Other
NonRecurring
Bottlenecks
5%
40%
Poor Signals
5%
Traffic
Incidents
Work Zones
Weather 25%
10%
15%

Delay in OKI Region
Daily person hours of delay

 2001-2004 ≈ 49,000 hours
 2004-2007 ≈ 51,000 hours
Daily cost of delay

 2001-2004 ≈ $746,000
 2004-2007 ≈ $784,000

Forecasted Change in Travel Times
40 37
35 32
29
28
30
25 21 22
minutes
20 2005
20 17
2030
15
10
PM Peak
5
0
Cincinnati CBD Cincinnati CBD Anderson to Sharonville to
to CVG to Kings Island Kenwood NKU

CMP Schedule
September 2007 – CMP Report with Findings

and Analysis
 Observed Data Collection (performed Oct-
Dec annually)
◦ 2007 - Group 1
◦ 2008 - Group 2
◦ 2009 - Group 3
◦ 2010 - Group 4
September 2011 – Next CMP report

 September 2011 thru May 2012 =
Development of Regional Transportation Plan

CMP Improvements
Identify and evaluate problem

intersections
 More detail on non-recurring
congestion (incidents)
 Multi-modal performance measures
 Examine specific causes of
congestion

CMP Integration into Planning
Process
Congestion maps assist in project

prioritization for TIP and Plan
 Evaluation matrix of CMP strategies
screens alternatives
 2030 traffic forecast and level-of-
service maps used in Plan
development
 Observed speeds used for model
calibration

OKI TIP/Plan CMP Strategies
Transportation Demand
1)
Management strategies
◦ OKI RideShare
◦ Strategic Regional Policy Plan

OKI TIP/Plan CMP Strategies
2) Traffic Operational Improvements
 Dixie Hwy Access Management
 Anderson Twp. CFI
 Traffic Signal interconnect
(Mason/Lockland/Cincinnati)

OKI TIP/Plan CMP Strategies
3) ITS Technologies
 ARTIMIS expansion
 I-74 ramp meters

OKI TIP/Plan CMP Strategies
4) Public Transportation
 New Park & Ride lots
 New transit centers
 Metro Bus-on-shoulder
 Rail Transit (Oasis Line)

OKI TIP/Plan CMP Strategies
5) New Road Capacity
 I-75 widening
 South Airfield Connector

Interim Data Collection
Findings
Group 1 facilities (Interstates) only

(Fall‟04 vs. Fall‟07)
◦ Total Vehicle Delay 16%
◦ AM travel time 4%
◦ PM travel time 3%
Group 2 facilities only (Fall„05 vs.

Fall„08)
◦ Total Vehicle Delay 6%
◦ AM travel time 1%
◦ PM travel time 2%

U.S. Annual Vehicle-Distance Traveled (Billion Miles)
thru January 2009
3,150
3,100
3,050
3,000
2,950
2,900
2,850
2,800
2,750
2,700
2,650
Vehicle-Distance Traveled (Billion Miles)
2,600
2,550
2,500
2,450
2,400
2,350
2,300
2,250
2,200
2,150
2,100
2,050
2,000
1,950
1,900
1,850
1,800
1,750
1,700
1,650
1,600
1,550
1,500
1,450
1,400
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
Year

More Information
September 2007 CMP Analysis Report
www.oki.org/transportation/index.html
Andy Reser, AICP
OKI
513-621-6300 x146
areser@oki.org