Presentation on theme: "1 New Generation Wide Base Single Truck Tire WASHTO Spring COHT Meeting March 10, 2009 Albuquerque, NM Stan Lew Industry Standards & Government Regulations."— Presentation transcript:
1 New Generation Wide Base Single Truck Tire WASHTO Spring COHT Meeting March 10, 2009 Albuquerque, NM Stan Lew Industry Standards & Government Regulations Michelin North America, Inc.
3 NGWBS Regulatory Issues Re-cap State regulatory issues –State permit-issued operation (O/S, O/W, LCV) “... each axle (non-steering) must have 4 tires...” (OR, SD, OK) “... two tires at each end of each axle...” (FL, KS, NY) “... minimum axle width...” (CA) 500 lpi (MT, NV (600 lpi tentative), SD, UT, WA) 2-axle 35’ - 45’ bus (TX) Responded questions –Tire/pavement contact stresses (AL-Qadi & NCAT studies) –Traction (snow traction data NGWBS v duals, users) –Stability (SAE and ORNL reports, user feedback)) –“Limping” (FMCSR on no vehicle/flat tire operation) Proposal: MHTA model single tire 600 lpi/SW ≥ 15” legislation (or 550 lpi).
4 NGWBS - U.S. States LCV Oversize/Overweight Permitted Operations (GVW > 36,364 kg/80,000 lbs) DC Alaska Hawaii Forms of State restrictions Resolution ( work in progress) CA tractor track width
5 NGWBS - Florida Admin. Code "Tire Requirements“ –Statewide application (v original change for FL Turnpike). –“Public Workshop” March 6, 2009.
6 TPM min. = 96” 71.5” 0” offset 94” 74.6” 2” offset Axle Width Minimum = 96” v Track Width California - TPM Chap. 3 Axle Width Minimum = 96” v Track Width Michelin NGWBS axle width minimum proposal: - “... for NGWBS tires the minimum axle width shall be 93 inches to qualify for extralegal weight....”.
7 California Air Resource Board - AB32 GHG regulation based on the U.S. EPA"Smartway Truck Efficiency" program. - Objective for Class 8 tractor/trailer 10% - 20% fuel reduction and emissions reductions. - Approved fuel efficient tires include NGWBS tires (XOne, Greatec) and others.
8 U.S. Energy Independence and Security Act (EISA) - Dec DOT to include truck fuel economy study. –National Academy of Sciences Assess technologies to improve fuel economy of medium, heavy- duty, and work trucks. Project scope (report due March 2010) –Assessment of fuel economy technologies for medium and heavy- duty vehicles. –Regulatory barriers and societal benefits of NGWBS tires included in assessment. –NHTSA Conduct a study to develop recommendations for fuel economy standards for medium and heavy duty vehicles and work trucks. –1 year after the NAS study. Develop regulations for medium and heavy duty vehicles and work trucks (within 2 years of NHTSA study).
9 NGWBS - Mexico NGWBS 18,000# /axle. - March 5, 2008 Diario Oficial on SCT approval. ● States ”Michelin X-One radial, tubeless, Infini-coil TM, 455/55R22.5 and 445/50R22.5, LR L” NGWBS tire continuing efforts. - Ministry of Transport proposal ● Braking, handling, maneuverability, and blow-out data for d ouble trailer combination. - Michelin testing completed previously and to be reviewed for submission.
10 NGWBS – Canada April 2008 MOU YT NWT # NUNAVUT BC * ALTA * SASK MAN ONT * QUE * $ NS NFLD # PEI NB # NGWBS U.S. dual tire axle parity (7,700 kg/17,000#) # 6K kg/axle Class 3 & secondary roads * Influential province NGWBS to Canadian dual tire axle (9,000 kg/19850#) parity ( $ $ NGWBS permits) NGWBS 8,500 kg/18,750# $
11 New Generation Wide Base Single Truck Tire WASHTO Spring Highway Transportation Committee Conference March 10, 2009 Albuquerque, NM Stan Lew Industry Standards & Government Regulations Michelin North America, Inc. Questions ?