Study to Establish Ride Comfort Criteria for High Speed Magnetically Levitated Transportation Systems

Details

• Creators:
  Sussman, E. D. ; Pollard, John K. ; Mengert, Peter ; Disario, Robert
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Subject/TRT Terms:
  • Ride quality
  • Passenger comfort
  • High speed ground transportation
  • Magnetic levitation vehicles
  • Magnetic Levitation Systems
  • Maneuver
  • Vertical Acceleration
  • Roll Rates
  • Ride Quality Index (RQI)
• Publication/ Report Number:
  DOT-VNTSC-FRA-94-1 ; DOT/FRA/NMI-94/1
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report July 1992 - July 1993
• Corporate Publisher:
  United States. Department of Transportation. Federal Railroad Administration
• Abstract:
  Advanced high speed fixed guideway transportation systems such as magnetic levitation systems have speed, acceleration, ; and banking capabilities which present new guideway design issues. This increased performance results in new concerns ; for passenger comfort, particularly with regard to vertical and lateral motions. If existing highway and other rights ; of way are to be used to the fullest extent at the very high speeds of which these systems are capable, the ride comfort ; concerns translate into limitations on changes in grade, curve radii, and the transition spirals used to enter the ; curves. This report examines the effect of rolling, banking, and vertical motions on the ride comfort ratings of seated ; passengers. The motions were produced using specific maneuvers in a small executive jet aircraft. The ride comfort ; ratings were transformed to estimates of the probability that the passengers would ride again. Using a conservative ; rule, the motion environment should be such that 95 percent of passengers would not hesitate to ride again. This 95 ; percent criterion was met when positive vertical accelerations were less than .30 g and negative vertical accelerations ; were less than .20 g. In turning maneuvers, this occurred when roll rates were less than 7 degrees per second and bank ; angles were less than 37 degrees. The data were also used to estimate the percentage of passengers who would not ; hesitate to ride with roll rates up to 15 degrees per second, bank angles up to 40 degrees, and vertical accelerations ; up to .25 g.
  More +
• Format:
  PDF
• Funding:
  RR494/R4214
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/8653/dot_8653_DS1.pdf
• File Type:
  [PDF - 2.14 MB]
• Collection(s):
  Volpe Center ; Federal Railroad Administration
• Main Document Checksum:
  urn:sha-512:8fbc805b89dea0af000da2c7920f6843cadc3fae5d7d3b231a191efbab14cd9c014ff62d62a2f8667b156f25b1f8a4e2943241d989e45edf15a2b9241a9ed622