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Customer Services, Operations, and Safety Committee
Board Information Item III-D
April 8, 2010
Bus Fleet Maintenance
Page 47 of 65
TITLE:
Metro Bus Fleet Overview
PURPOSE:
Provide an overview of CNG, Hybrid/Electric, and Clean Diesel and Standard Diesel bus performance.
DESCRIPTION:
The presentation will include a discussion of issues encountered and resolved, and those that still need to be resolved, of the four different power train technologies. The performance and reliability of each technology will be presented and compared.
FUNDING IMPACT:
No impact on funding
RECOMMENDATION:
There is no recommendation.
Washington Metropolitan Area Transit Authority
Board Action/Information Summary
Action Information MEAD Number: Resolution:Yes No
Page 1 of 1
4/2/2010http://mead/prod/reports/bais.cfm?RequestTimeout=300
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Bus Fleet Maintenance
C S O S f CCustomer Service, Operations, and Safety Committee
April 8, 2010
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The Metrobus Fleet
• Sixth largest transit bus fleet in the country
The Metrobus Fleet
g y• 1,479 active buses• Average fleet age is 8.4 years• Four powertrain technologies
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Bus Fleet OverviewBus Fleet Overview
Bus count by powertrain:Hybrid Electric = 253 BusesHybrid Electric = 253 BusesCNG = 461 BusesClean Diesel = 117 BusesStandard Diesel = 648 Buses
CNG 31.2%Diesel
43.8%Standard Diesel 648 Buses
Bus count by size:30/37 ft =111 Buses Hybrid /40/42 ft =1,279 Buses60/62 ft= 89 Buses
17.1%Clean Diesel 7.9%
• Annual miles operated = 49,778,791• Elderly and disabled accessibility = 100%• Current delivery completed= 203 on property
N t b d 148 b b S t b 30th• Next new bus order = 148 buses by September 30th
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Bus Fleet ReliabilityBus Fleet Reliability
8,000
BUS - Mean Distance Between Failures FYTD = 5,907
6,000
7,000
Perf
orm
ance
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
GOAL 6,500 6,500 6,500 6,500 6,500 6,500 6,000 6,000 6,000 6,000 6,000 6,000
4,000
5,000
6,500 6,500 6,500 6,500 6,500 6,500 6,000 6,000 6,000 6,000 6,000 6,000
FY2009 4,744 5,820 6,153 5,876 7,405 6,601 6,316 6,227 6,292 4,945 4,652 4,503
FY2010 4,898 5,437 5,325 5,732 6,054 6,700 7,223 6,878
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Bus Fleet Reliability
Bus - MDBF by Fleet, FY'09 - FY‘10 To Date
Bus Fleet Reliability
14 000
16,000
18,000
20,000
8,000
10,000
12,000
14,000
0
2,000
4,000
6,000
Jul-08 Aug-08 Sep-08 Oct-08 Nov-08 Dec-08 Jan-09 Feb-09 Mar-09 Apr-09 May-09 Jun-09 Jul-09 Aug-09 Sep-09 Oct-09 Nov-09 Dec-09 Jan-10 Feb-10 Mar-10 Apr-10 May-10 Jun-10 FY-09 FY-10
CNG 9,151 9,412 9,318 11,273 11,693 10,917 9,194 10,025 9,524 9,391 7,070 7,791 7,053 7,739 7,851 8,105 7,362 12,258 9,347 8,935 10,030 8,349
Hybrid 7,591 8,449 10,672 8,262 11,247 9,797 8,044 8,694 5,741 8,433 7,090 7,250 11,141 8,962 8,520 9,973 10,980 10,167 11,859 10,666 8,946 10,305
Clean Diesel 10,104 11,771 15,563 14,211 17,830 14,380 16,049 14,433 13,516 6,990 10,154 9,968 9,400 13,015 11,150 12,345 10,052 11,137 9,806 9,911 13,929 10,787
All Others 3,178 4,146 4,323 3,897 5,136 4,628 4,502 4,426 4,559 3,387 3,354 3,048 3,386 3,739 3,679 3,872 4,393 4,187 5,225 4,928 4,196 4,055
0
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CNG Fleet OverviewCNG Fleet Overview
100001200014000 CNG Goal
02000400060008000
MD
BF
Goal = 10,200FYTD = 8,349
Year Manufacturer Number 2001 New Flyer 1002002 New Flyer 642005 Orion 2502007 New Flyer 252007 New Flyer 252008 NABI 22
• Fiscal Year to Date Miles= 9,576,139• Cost per mile = $1 00• Cost per mile = $1.00
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CNG Technology IssuesCNG Technology Issues
8.3G+ Engine, 309 units• the most reliable engines in the fleetthe most reliable engines in the fleet
John Deere, 105 units• UEGO (Universal Exhaust Gas Oxygen) sensor failures - Ongoing• Engine failures (burnt valves) - cylinder head replacement - Ongoing• Crankcase vent retrofit completed evaluation ongoing• Crankcase vent retrofit - completed evaluation ongoing• Fleet failure notification on engines
ISL-G, 22 units• Turbochargers - Available for retrofit by mid 2010
EGR (E h t G R i l ti ) l l ti i• EGR (Exhaust Gas Recirculation) coolers - evaluation ongoing• Sensors - retrofit complete - evaluation ongoing• Spark plug - retrofit complete - evaluation ongoing• Pistons - ongoing observation• ECM (Engine Control Module) calibrations to reduce Check Engine Light
- currently working with Cummins and NABI to resolve underlying issues
Doosan EngineC l d l l l• Currently under evaluation as an engine replacement alternative
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Hybrid Electric Fleet OverviewHybrid Electric Fleet Overview
100001200014000 HYBRID Goal
02000400060008000
MD
BF
GOAL = 10,700FYTD = 10,305
Year Manufacturer Number 2006 New Flyer 502008 New Flyer 1032009 New Flyer 1002009 New Flyer 100
• Fiscal Year to Date Miles = 4,947,673Cost per mile $0 71• Cost per mile = $0.71
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Hybrid Electric Technology IssuesHybrid Electric Technology Issues
• Bus manufacturer harness failures - replacement complete
• Calibrate engine controls for balanced performance and fuel economyto meet Metrobus specifications - completed
• Allison EV-40 campaign recommended by manufacturer - campaign in progress
• Exhaust UCM (Ultra-Compact Module) exhaust monitoring system -replacement complete, evaluation ongoing
• DPIM (Dual Power Inverter Module) issues - 15 early failuressoftware upgrade, continuing to monitor
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Clean Diesel Fleet OverviewClean Diesel Fleet Overview
15,000
20,000 CLEAN DIESEL Goal
0
5,000
10,000
MD
BF
GOAL = 13,200FYTD = 10,787
Year Manufacturer Number 2006 New Flyer 117
• Fiscal Year to Date Miles = 3,807,758• Cost per mile = $1.04
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Clean Diesel Technology Fleet IssuesClean Diesel Technology Fleet Issues
• Exhaust Gas Recirculation valve issues - failed parts under extendedb l d h l d d dwarranty are being replaced with supplied upgraded components
• Failing turbos - under evaluation and replaced under warranty
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Standard Diesel Fleet OverviewStandard Diesel Fleet Overview
400050006000
BF
DIESEL Goal
0100020003000
MD
B
GOAL = 4,100FYTD = 4,055
Year Manufacturer Number 1990 Flxible 401994 Flxible 741995 Ikarus 261997 Orion 2592000 Orion 2302000 Orion 2302003 Neoplan 19
• Fiscal Year to Date Miles = 13,497,911C il $1 29• Cost per mile = $1.29
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Standard Diesel Technology IssuesStandard Diesel Technology Issues
• The issue of parts availability and supply for older fleet - ongoing
• Soot filters fitted on current buses require constant monitoring and maintenance - 261/ongoing
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Overall Bus Fleet IssuesOverall Bus Fleet Issues
Batteriesb b d Gl b d l d• Absorbed Glass Mat batteries as direct replacements due to
the introduction of onboard electronic equipment – tests ongoing
High engine compartment temperature• Engineered Machined Products (EMP) electric fans for higher cooling
capacity – evaluation ongoingD d ti f b lt & h d t hi h i t t• Degradation of belts & hoses due to high engine compartmenttemperatures – evaluation ongoing
• Pressure test cooling systems at a preventive maintenancei iservice – ongoing
• A-level service Standard Operating Procedure (SOP) is constantly being reviewed to include the latest in best practices from the industry - ongoing
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Industry Performance DataIndustry Performance Data
Metrobus Mean Distance Between Failures fiscal year to date = 5,907
Average MDBF of other Transit AuthoritiesNew York MTA = 3,379Long Island, NY MTA = 2,531MBTA Boston MA. = 9,209Miami-Dade = 3,888CTA Chicago Transit = 4,313Los Angeles CA Metro = 1,500
Note: A review of data provided reveals different methodology for calculating MDBF and different operating environments throughout the industry. These numbers are provided for rough comparison and not for benchmarking.
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Improve & Sustain PerformanceImprove & Sustain Performance
h d f f d f hThe Board of Directors continues to support funding of the:
• 100 Bus per year replacement procurement
• 100 Bus per year rehabilitation program
• Capitalization of repairables
These will permit the high level of vehicle reliability and performance to continue and improve
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