s42_implementation of practical design in missouri_ltc2013

7/29/2019 S42_Implementation of Practical Design in Missouri_LTC2013

1/13

7 Years of Results

Kathryn P. Harvey, P.E.State Design EngineerMissouri Department of Transportation


2/13

A Brief History

Prior to 2005, everydesign was based on asingle figure in theProject DevelopmentManual

If the FunctionalClassification, ADT,and Design Speedwere known, the chart

would yield all of thedesign parameters forthe project


3/13

A Brief History

Following the tableverbatim often led todesign decisions thatwere less thanpractical


4/13

A Brief History

6 ft. Shoulder

10 ft. Shoulder

The differencebetween traditionaland practical design isbarely visible to thedriver


5/13

A Brief History

Designing by-the-book simplycould not continue underthe financial conditionsthat were forecastfor MoDOT

Senior leadershiprealized that MoDOTcould not controlhow much fundingwas received, onlyhow it was spent

Practical designwas born


6/13

A Brief History

Safety

Ground Rules

Communication

Quality


7/13

The Results - Safety

Practical design focuses on low-cost solutions that can

make a big impact system-wide, as opposed to high-costsolutions in individual locations Wider pavement

markings

Rumble stripes

Cable barriers

Delineators


8/13

The Results - Safety

2,437 fewer fatal crashes since 2005

14,000 fewer disabling injury crashes since 2005

43% decrease in lane departure fatalities since 2005

Cross median fatalcrashes on Interstateswent from 55 in 2000,to under 10 in 2008


9/13

The Results - Communication

There is collaboration in developing every practicalsolution. Communication among designers, stakeholders,

and administration officials is open, tolerant, and frequent.

More face-to-face discussions, both live and video

Every idea is at least considered Design Exceptions are encouraged

Constant communication with FHWA

Constant communication with Legislature Constant communication with Media & Stakeholders


10/13

The Results - Communication

86 % of newspapers editorials are positive

98% of news reports are positive Over 2.5 million customers engaged through social

media

85% overallcustomer

satisfaction

88% ofcustomersbelieveprojects arethe right

transportationsolution


11/13

The Results - Quality

The practical solution must function properly and cannotleave a legacy of maintenance challenges. With Practical

Design, quality remains at the forefront.

No cutting corners

Keep commitments, dont under deliver Take risks and learn from failure


12/13

The Results - Quality

In FY2012, MoDOT delivered $1.1B worth of work, 10.3%under budget

88% of the states major road pavements are in goodcondition

The I-64 reconstruction projectin St. Louis won the grandprize for Americas

Transportation Awards

85% of the states majorroad bridges are in good

condition


13/13

Questions ?

Kathryn P. Harvey, P.E.State Design EngineerMissouri Department of Transportation

s42_implementation of practical design in missouri_ltc2013

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