Working Group

1
Working Group 2 Report

• IEEE Rail Transit Vehicle Interface Standards
  Committee Meeting
• March 14, 2000

2
Current Status

• IEEE Std. 1474.1-1999, CBTC Performance and
  Functional Requirements, issued in December,
  1999
• WG2 meeting to discuss next steps held on
  February 18, 2000 at SEPTA

3
Meeting Attendees

• Consumers 17 (61)
• Producers 5 (18)
• Others 6 (21)
• TOTAL 28 (100)

4
Process

• Brainstorm potential new initiatives
• Open items from IEEE Std. 1474.1-1999
• Other proposals raised by WG2 members
• Discussion
• Establish consensus
• vote

5
Recommendation 1

• Environmental standard (incl. EMI/EMC) for CBTC
  wayside equipment
• 100 of group voted on this item
• 100 of those that voted, voted for
• Recommendation is that WG8, or possibly a new WG,
  take on this standard initiative
• (No chair currently identified for new WG)

6
Recommendation 2

• Graphical user interface display standard for
  trainborne and central CBTC subsystems
• 78 of group voted on this item
• 95 of those that voted, voted for
• Emphasis would be on defining information to be
  provided by CBTC subsystems for display purposes.
  Standard may also define form of display
  presentation
• Alan Rumsey to prepare Scope and Purpose for
  proposed new standard for review/approval by
  RTVISC and to continue to chair WG for this new
  standard initiative

7
Recommendation 2

• Proposed Scope
• This standard establishes the information to be
  displayed on trainborne and central graphical
  user interfaces in communications-based train
  control (CBTC) systems.
• Proposed Purpose
• This standard will provide for consistent
  trainborne and central graphical user interfaces
  that take advantage of the characteristics of
  communications-based train control (CBTC) systems
  to enhance service effectiveness of a rail
  transit system.

8
Recommendation 3

• Expand highway grade crossing functional
  requirements for CBTC systems
• 67 of group voted on this item
• 94 of those that voted, voted for
• Extent to which expanded grade crossing
  requirements for CBTC systems will be addressed
  by WG14 needs to be clarified
• If not being addressed by WG14, and subject to
  RTVISC approval, Vic Grappone has agreed to
  develop a detailed Scope and Purpose for proposed
  new standard, and chair a subgroup of WG2 to
  develop the additional functional requirements

9
Recommendation 4

• CBTC standard to address operation of trains
  without crews
• 75 of group voted on this item
• 90 of those that voted, voted for
• In general, it was the opinion of the WG2 members
  that the existing IEEE Std. 1474.1-1999 should be
  reviewed/updated in approximately 2 to 3 years
  time, to reflect experience of ongoing CBTC
  projects and CBTC system developments, and it was
  recommended that the update to include CBTC
  performance and functional requirements for train
  operations without crews should be incorporated
  at that time

10
Other WG2 Conclusions 1

• CBTC interoperability interface standards

Data Communication System
11
Other WG2 Conclusions 1

• CBTC interoperability interface standard
• 100 of group voted on this item
• only 18 of those that voted, voted for
• While WG2 continues to support the ultimate goal
  of interoperability interface standards for CBTC,
  the WG2 members were unable to reach sufficient
  consensus that this effort should be progressed
  at this time
• In the future, standards in the following area
  may also be desirable, but again there was
  insufficient consensus to proceed with standards
  development in these areas at this time

12
Other WG2 Conclusions 1a

• Standard for a data communications subsystem for
  CBTC systems
• only 68 of group voted on this item
• only 63 of those that voted, voted for
• Insufficient consensus within WG2 to proceed with
  standards development in this areas at this time

13
Other WG2 Conclusions 1b

• Standard for definition of CBTC data elements
• 93 of group voted on this item
• only 42 of those that voted, voted for
• Insufficient consensus within WG2 to proceed with
  standards development in this areas at this time

14
Other WG2 Conclusions 1c

• Standard for CBTC/IEEE Std. 1473 interfaces
• only 59 of group voted on this item
• only 38 of those that voted, voted for
• Insufficient consensus within WG2 to proceed with
  standards development in this areas at this time

15
Other WG2 Conclusions 2

• Acceptance Testing Standards for CBTC Systems
• 79 of group voted on this item
• only 64 of those that voted, voted for
• Insufficient consensus to proceed with such
  standards development at this time
• It was also unclear if such a standard would be
  within the IEEE mandate (rather than within the
  mandate of the applicable regulatory agencies)

16
Other WG2 Conclusions 3

• Maintenance Standards for CBTC Systems
• 71 of group voted on this item
• only 25 of those that voted, voted for
• Insufficient consensus to proceed with such
  standards development at this time

17
Other WG2 Comments

• Means of improving coordination between IEEE CBTC
  and NAJPTC/RSAC standard initiatives should
  continue to be explored
• Means of establishing coordination between IEEE
  CBTC and European Urban Transit CBTC standard
  initiatives (UGTMS) should also be explored

18
Next Meeting

• When Thursday, April 27, 2000
• Where USS, Pittsburgh