bus testing program operated by: thomas d. larson, pennsylvania transportation institute altoona bus...
TRANSCRIPT
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Bus Testing Program
Operated by:Thomas D. Larson, Pennsylvania Transportation Institute
Altoona Bus Testing and Research CenterPennsylvania Transportation Institute
College of EngineeringThe Pennsylvania State University
Federal Transit Administration’s
“Altoona Testing”
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LTI’s Full-Scale Research Facility (Test Track)
Vehicle Testing Laboratory
Research Laboratory and Office
Vehicle Handling Area
Entrance (Test Track Road)
Rock Road
Brake Slope
Vehicle Durability Track
Dynamometer
Rail-Guided Crash Test Facility
Large Impact Pendulum
Bus Lane
Pavement Durability Track
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The Tests
• Eight evaluation categories– Maintainability– Reliability– Safety– Performance/Braking– Structural Integrity
and Durability– Fuel Economy– Noise– Emissions
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Data Reported
• Comprehensive Final Test Report– Report for each model tested– Format standardized for ease of comparison
between competing models– Objective results– No pass/fail– Descriptions of all problems/failures
encountered– Data intended for use during procurement
process
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Bus Models Tested
Since its inception, the test center has completed testing of 384 buses.Since its inception, the test center has completed testing of 384 buses.
Number of Buses
Service-Life Category
153 12-Year, 500,000 mile
62 10-Year, 350,000 mile
102 7-Year, 200,000 mile
19 5-Year, 150,000 mile
48 4-Year, 100,000 mile
As of March 31, 2008
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Failures Encountered
• Majority of failures encountered– Chassis/structure– Suspension– Engine/drive train– Exhaust/emissions– Electrical– Air conditioning/heating– Brakes– Steering– Fuel Systems– Seats/Lifts/Doors/Windows
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Tested Buses by Fuel Type
Diesel – 233 Gasoline – 63 CNG – 62 Bi-Fuel (LNG/Diesel, CNG/Diesel, CNG/Gasoline) – 8 LNG – 5 Methanol – 1 Battery Electric – 3 Diesel Hybrid – 7 LNG Hybrid – 1 Gasoline Hybrid- 3 TOTAL - 393
Based on data from 393 buses completing structural durability test. Based on data from 393 buses completing structural durability test.
As of March 31, 2008