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Transportation . Management Plans. EFFECTIVENESS STUDY. [email protected] 1. “PREVIOUS SUCCESSES”. OLYMPIAD XXIII - 1984 Projections of Huge Traffic Jams / Images of Stranded Tourists Missing Events Residents “Scared” into Leaving Town Los Angeles Praised -“Great Planning!”.

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Effectiveness study

Transportation

Management Plans

EFFECTIVENESS STUDY

[email protected]

1


Effectiveness study

“PREVIOUS SUCCESSES”

  • OLYMPIAD XXIII - 1984

    • Projections of Huge Traffic Jams /

    • Images of Stranded Tourists Missing Events

    • Residents “Scared” into Leaving Town

      Los Angeles Praised -“Great Planning!”

“People are Resilient

AND Resourceful!”

  • SAN FRANCISCO EARTHQUAKE - 1989

    • No Advance Warning

    • Motorists / Congestion Disappeared

    • Diversions Did Not Account for Total

    • “Where Did They All Go??”

      San Francisco Praised - “Great Work!”

2


Effectiveness study

STUDY PURPOSE

  • Evaluate District compliance with Guidelines

  • Evaluate Typical Measures of Effectiveness

  • Determine Most Effective Strategies

  • Evaluate Cost versus Benefit

  • Establish Lessons Learned

  • Formulate Recommendations to Improve

    TMP Process / Modify Guidelines

3


Effectiveness study

“We must get the most out of the roads we have before building any new ones…..well, duh!”

Caltrans’ Mission

To Improve MobilityAcross California

8 of 15 of the Most Congested Cities are in California

4


Deputy directive 60 eff 2000

Construction

Special

Events

WHAT’S THE POLICY?

DEPUTY DIRECTIVE 60 (Eff. 2000)

Maintenance

Encroachment

Permits

Caltrans’ commitment is to: Minimize motorist delays for ALL activities on the State highway system without compromising public or worker safety, or the quality of the work being performed.

100% Compliance

..but with Varying

Levels of Treatment..

5


Tmp categories strategies

“Blanket” TMP

“Major” TMP (~5% of Projects)

Public Awareness

Campaigns, Fixed CMS,

Extended Closures, Moveable

Barriers, COZEEP, Detours,

Reduced Lane Widths,

Website, Helicopter..

Night Work, Portable

& Fixed CMS, COZEEP,

TMT, HAR, FSP, Gawk

Screens..

TMP CATEGORIES & STRATEGIES

“Minor” TMP

(Majority)

  • Minimal impacts caused by work

  • Lane closure charts required

  • Some mitigation measures required

  • Significant impacts caused by work

  • Multiple TMP strategies

  • Multiple contracts

  • No expected delays

  • Off peak

  • Low volume roads

  • Moving lane closures

Portable

CMS, FSP, TMT,

Off-peak hours

6


Six tmp strategies

TMP Costs for one

Project were estimated

as high as $7,000,000

Six TMP Strategies

ublic Information

  • P

  • M

  • I

  • C

  • D

  • A

otorist Information

ncident Management

onstruction Strategies

emand Management

lternate Routes

7


Effectiveness study

How Would You Measure the Effectiveness of TMP Strategies?

Traffic Volume Counts,

Floating Car Runs,

Queue Lengths,

Transit Ridership,

Video Surveillance ..

  • Overall Corridor

  • Public Awareness

  • Motorist Information

  • Incident Management

Personal or Mail-in

Surveys, No. of Calls or

Website Hits, Public

Meeting Attendance ..

Personal or Mail-in

Surveys, Traffic

Observations ..

Accident Response /

Removal Time,

Pre- / Post- Accident

Rates ..

8


Effectiveness study

Measurement of Effectiveness (Cont.)

Traffic Volume Counts,

Floating Car Runs,

Queue Lengths, Lane

Closures Set / Picked

Up on Time ..

  • Construction Strategies

  • Demand Management

  • Alternate Routes

Trip Mode Distribution,

Park ‘n’ Ride Lot Usage,

Carpooling Surveys,

Employer Surveys ..

Traffic Volume Counts

Floating Car Runs,

Origin/Destination

Surveys ..

9


Effectiveness study

District 07

I-10 Long-Life Pavement Project

Example of Corridor Effectiveness Results

  • Vehicle Delay

  • Traffic Volumes

  • Length of Queues

  • Safety

Pre-Const. Estimate

= 1,000,000 veh-hrs

Actual Delay

= 16,000 veh-hrs

Example

Traffic Demand on

Interstate 10 was

reduced by57% (from

112,000 to 56,000 veh)

Initial Estimate

= 44 miles

Actual Queue Length

= 1.9 miles

No collisions or

Employee injuries

occurred in the

Work Zone

Project Characteristics

- Fast-setting Hydraulic Concrete

- Closed 2 of 4 Lanes

- Extended 55-Hour Closures

10


Effectiveness study

District 07

I-10 Long-Life Pavement Project

Actual Delay in Work Zone WithTMP Strategies

Example

(Initial Projected Delay = 1 Hour / Vehicle)

(Delay in minutes)Sat. Sun.

Rte 30/Foothill Blvd. 9 2

Arrow Highway 7 2

Holt Ave. 6 5

Mission Blvd. 3 2

Detour

Rte 60 Freeway 20 34

Projected

Delay

Actual

Delay

11


Effectiveness study

But..

WHICH strategies

led to these

Great Results??

511

?

?

?

?

12


Effectiveness study

MOST EFFECTIVE STRATEGIES

- PUBLIC AWARENESS

“If you drive I-80, you

might want to consider

an alternate route

this morning..”

“Which way

should we

go today..?”

Use HOV, Bus or Rail

Telecommute ..

Leave Earlier

or Later ..

13


Effectiveness study

Slogans AND Maps

are Good and

Easy to Remember..

“Improve Your Drive

on the Five!”

Instead of saying

“Bridge Replacement

Project” --...

14


Effectiveness study

What Did the Public Notice?

Metro Traffic

511

Percentage

District 04

Central Freeway Replacement Project

Project Characteristics

- Full-freeway Closure

- On- and Off-Ramps Closed

- Extensive Public Info Campaign

Example

78%

32%

15


Effective construction strategies

Location:

Legend:

Remarks:

Effective Construction Strategies

LANE REQUIREMENT CHARTS

-Based on “0” delay (Const.)

- 5 -15 minutes Delay (Maint.)

- According to District Traffic Managers - eliminates about 90% of potential delay

PROBLEMS

- Const. windows reduced

- More Night work (Urban/Rural)

- Comparative Quality?

- Comparative Safety?

16


Effective construction strategies cont

Effective Construction Strategies (Cont.)

  • CONSTRUCTION STAGING

  • DELAY PENALTY --“Hammer” for the RE to charge the Contractor ($$$) for late pick-up of the closure .

  • EXTENDED CLOSURES(e.g. 55-Hour Weekends or 72-Hour Weekdays)

  • NARROW LANE WIDTHS or USE OF SHOULDERS (PEAK PERIOD)

  • MOVEABLE BARRIERS

  • CONTRAFLOW(“Crossovers”)

  • CONTINGENCY PLANS(Redundancy)

17


Effectiveness study

District 08

I-15 Devore PCCP Reconstruction

Schedule

Cost Comparison ($Millions)

Max.

Construction

Comparison

Delay

Scenario

(Min)

Closure

Total

User

Traffic

Construction

Total

Handling

Hours

Closures

Delay

72-Hour

8

512

5.6

10.5

2.1

18.2

75

Weekday

55-Hour

10

550

14.2

12.5

2.6

29.3

196

Weekend

1 Roadbed

2

400

6.9

8.9

1.0

16.8

196

Continuous

10-Hour

220

2,200

4.9

19.1

1.3

25.3

36

Night-time

EXTENDED CLOSURE - Schedule, Cost & Delay Comparison

Project Characteristics

- Full-Freeway Closed - one direction

- Extended 72-Hour Closures

Example

18


Effectiveness study

District 05

Cuesta Grade Project

Effective Strategies -- Demand Management

Project Characteristics

- Addition of NB / SB Truck-Climbing Lanes

- Addition of Eight-foot Shoulders

- Construction of massive Retaining Walls

Example

  • NO. OF PEAK HOUR TRIPS

  • VAN POOL RIDERS

  • BUS TRIPS

  • PARK ‘N’ RIDE USAGE

4% Average

Reduction

313% Increase

38% increase

Strategy Cost

= $3,300,000

29% Increase

Strategy Cost

= $780,000

19


Effectiveness study

City Streets

Only - 11%

No Longer

Made Trip - 3%

Public Transit - 2%

Other - 2%

Freeway /

Transit - 3%

Freeway /

Streets - 2%

Different Freeway

or Ramp Route - 76%

Freeway /

Fewer Trips - 1%

District 04

Central Freeway Replacement Project

Alternate Route Strategies(Info obtained by Survey)

Example

20


Effectiveness study

District 11

I-5 / I-805 Widening Project

BENEFITS VS. COSTS??“Bang for the Buck...”

$607,500

$835,000

$2,767,000

---

$400,000

$10,000

ublic Information

  • P

  • M

  • I

  • C

  • D

  • A

otorist Information

ncident Management

onstruction Strategies

emand Management

lternate Routes

COMPARE COST VS. DELAY SAVINGS

Project Characteristics

- Const. Separate Freeway Bypass

- Const. of new Interchange / Auxiliary Lanes

Example

Strategy Cost

COZEEP Cost = $1,700,000

Goal - Increase Van, Carpools, Bus by 5% / Change worktime by 2%

21


Effectiveness study

LESSONS LEARNED

  • PUBLIC AWARENESS

    • Newspapers

    • TV News Spots

  • ADVANCE SIGNAGE

    • Before Decision Points

    • On Preceding Weeks / Weekends

  • ADHERE TO LANE REQ’MT CHARTS

    • Real-Time Statusing is Needed

    • Penalties for Late Lane Opening

  • KEEP LANES OPEN

    • Narrow Lane Widths

    • Shoulder Usage during Peak

PUBLIC AWARENESS: MOST Effective Strategies facilitate Decision-Making by Driving Public to avoid Work Zone

CONSTRUCTION

Strategies are also very effective

22


Effectiveness study

LESSONS LEARNED (cont.)

Delay cost to motorists

TMP

Cost

  • CONSIDER OTHER STRATEGIES:

    • Extended Closures vs. Night Closures

    • (“Get in & Stay in -- Get out & Stay out!”)

    • Close Coordination w/ Locals (Detours, Signals…)

    • Shorten Contract Time through Incentives

  • COST VS. BENEFIT

    • $$$ on Work Zone Enforcement vs. Benefit ??

    • $$$ on Brochures, Ads, Flyers, vs. Benefit ??

      • (Media Coverage -- no cost for Major Projects)

    • Costs of TMP Strategies vs. Delay costs

  • OTHER ISSUES

    • Truck Restrictions / Closures on Parallel Routes

    • Cumulative Impacts due to Multiple Projects

    • (Combine closures when advantageous)

23


Effectiveness study

RECOMMENDATIONS

  • STREAMLINE TMP PROCESS

    • Blanket / Minor Projects (Standardized Forms)

    • Major Projects (Brief, Standardized Reports)

    • Critical Monitoring Activities - Delay Counts, Runs

  • PROPOSED STUDIES

    • Detailed TMP Effectiveness - Costs vs. Benefits

    • Full-Freeway vs. Night Closures

    • Enforcement Practices (Placement, etc.)

  • MODIFY TMP GUIDELINES

    • Standardize Monitoring Practices

    • Standardize Reporting Practices

    • Include Non-Motorized Considerations

24


Effectiveness study

Transportation

Management Plans

QUESTIONS??

[email protected]

25


Effectiveness study

HANDOUTS

  • TMP Process

  • Relationship between Project

  • Characteristics and TMP Strategies

  • Sample Unit Costs for TMP Strategies

  • TMP Strategies -- Unit cost Info

  • Sample Worksheet -- Blanket TMP

  • Sample Delay Calculations

A-1


Effectiveness study

A-2


Effectiveness study

Relationship between Project Characteristicsand Appropriate TMP Strategies

A-3


Effectiveness study

Sample Unit Costs for TMP Strategies

A-4


Effectiveness study

Sample Unit Costs for TMP Strategies (Cont.)

A-5


Effectiveness study

A-6


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A-7


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A-8


Effectiveness study

Submit to the District Traffic Manager..

Example

A-9


Effectiveness study

Sample Delay Calculations

A-10


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