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[Sustran] Re: More on motorbikes

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  • EcoPlan, Paris
    ... Behalf Of Guillen Danielle Sent: Tuesday, November 30, 2004 10:21 AM Hello there Mr. Johnson and to those interested in motorcycle studies, Thank you for
    Message 1 of 2 , Nov 30, 2004
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      -----Original Message-----
      Behalf Of Guillen Danielle
      Sent: Tuesday, November 30, 2004 10:21 AM

      Hello there Mr. Johnson and to those interested in motorcycle studies,

      Thank you for this interesting article.

      A paper by Dr. Ing Hsu, Tien-Pen entitled " A Comparison Study on
      Motorcycle Traffic Development in some Asian countries-Case of Taiwan,
      Malaysia and Vietnam" full report available at
      http://www.easts.info/Awards/ICRA-ComparisonStudyMotorcycleDevelopment.pdf
      might also be of interest to you.


      Moreover, I must admit I am particularly interested in this topic as Im
      presently working on my graduate research about motorcycle propelled
      vehicles, the case of tricycles and habal-habal (or motorcycle taxis with
      extension that can accomodate four passengers ) in Davao City, Philippines.
      Compare with other ASEAN countries, motorcycle taxi is not as popular in our

      country, however in 1999, the habal-habal emerged and initial interviews
      with local officials interestingly share the same views as with those of the

      municipal transport official of San Paulo's. You can read more of it at
      this site http://www.iatss.or.jp/english/research/v28-n1/res-moku.html

      I would be very happy to know if there are studies that have done to
      quantify its economic importance (as it is one of the thrust of my study
      too). Any discussion on this from the experts is greatly appreciated.

      Many thanks!

      Best Regards,
      Danielle Guillen
      Graduate Student
      University of Tsukuba
    • Daryl Oster
      On Behalf Of Daryl Oster Sent: Tuesday, November 30, 2004 9:38 PM Motorcycles have several cost and safety advantages over other modes: A couple of measures
      Message 2 of 2 , Dec 1, 2004
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        On Behalf Of Daryl Oster
        Sent: Tuesday, November 30, 2004 9:38 PM


        Motorcycles have several cost and safety advantages over other modes:

        A couple of measures that best indicate a vehicles efficiency and relative
        safety in an urban environment is the vehicle mass per occupant, and the
        vehicle mass per driver.

        The vehicle mass per occupant is a good metric to compare the relative
        efficiency of materials, and energy use:

        For a motorcycle with a mass of 100kg, the average vehicle mass per occupant
        is either 50kg at best (vehicle fully loaded), to 100kg worst case(only the
        driver). For a car of 900kg, the vehicle mass per passenger is about
        150kg/pasenger at best, to 900kg/passenger worst. For a 10,000kg 50
        passenger bus, the best case is 200kg, and the worst case is 10,000kg. For
        a train, the mass per occupant are yet higher. The mechanics of material
        use dictates that larger vehicles will required more material use per
        occupant under best case, and the usual case of less than 100% load factor,
        the real world material utilization is much worse.

        It is true that motorcycle death rate is much greater than the rate in cars
        or busses. How much of that is the fault of the motorcycle, and how much is
        the fault of the cars and buses? For equal speed of vehicles, the fully
        loaded vehicle mass per driver is a good measure of the relative potential
        for one individual to cause damage in the event of loss of vehicle control,
        or failure to observe the ROW:

        Motorcycle == 150kg to 500kg per driver
        Private Automobile== 1500kg to 5000kg per driver
        Bus== 5,000kg to 20,000kg / driver

        For a given speed, the motorcycle represents the lowest risk to others, by
        more than a factor of 10. The private automobile driver not only has
        responsibility for more passengers, they also can cause much greater damage
        to other vehicles, and or property. The bus driver has far more potential
        to cause death in the event of an error, for the passengers on the bus, AND
        those other pedestrians and vehicles on the street.

        There is much evidence to support the view that bus drivers abuse
        pedestrians, car, and motorcycle occupants by un-rightfully taking the ROW
        through intimidation by virtue of their potential to damage other vehicles
        (with little relative risk to the bus driver). By contrast, motorcyclists,
        since they are more exposed to greater personal risk, they drive more
        cautiously, and do not aggressively take the ROW from other vehicles that by
        law should have priority.

        An observer will rarely see a motorcycle pull out in front of a bus, while
        it is frequent that busses will bull out in front of motorcycles that must
        make defensive maneuvers to avoid injury.




        Daryl Oster
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