Structural Gauge Envelopes - Public Transport Victoria

VRIOGS 001 Revision B 21
SECTION 9.0 Structure Gauge Envelopes – for Existing Infrastructure
adjacent to, or in the Air Space over Track, excluding tracks
operated by ARTC.
There are numerous cases of existing Infrastructure that have been built to lesser clearance
requirements then those outlined within this standard. This is due to much of the Infrastructure being
built to meet standards prevailing at that time. In the cases where existing Infrastructure does not
conform to the dimensions outlined earlier within this document then as an absolute minimum they
shall comply with the structure gauge envelopes detailed in Figure 4.
In addition to the requirements outlined in Figure 4 the following minimum conditions shall also apply:
The Centre lines of tracks running in parallel straight lines shall be separated by a minimum Horizontal
Clearances of:
a) 3.556m between track centrelines
b) Where existing lighting structures and signals and electrification structures are located
between tracks the minimum horizontal clearance to closest edge of the structure shall be
2.007m
c) For curved tracks, track centreline spacing’s as nominated in Section 4.2 of this document
In cases where existing Infrastructure does not conform to the structure gauge envelope outlined in
Figure 4, refer to Section 5.2 Critical Clearances.
ENVELOPE Q - Notes applicable to Figure 4:
The structure gauge envelope for existing Infrastructure over track that has been identified to be used
for Electric Motor Units shall comply with envelope Q. Note that:
a) The minimum horizontal clearances outlined in Envelope Q applies to existing bridge piers,
retaining walls, lighting and electrification structures, Verandah Eaves and signal structures.
b) The minimum vertical clearances outlined in Envelope Q applies to existing bridges, standard signal
and electrification structures, and lighting structures.
Note: The above absolute minimum clearances and those outlined in Figure 4 only apply to
rolling stock that meet the rolling stock outline diagram – static condition outlined in Standard
Drawing STD_ R0009. These absolute minimum clearances do not apply to rolling stock that
does not meet this static rolling stock envelope.
ENVELOPE R - Notes applicable to Figure 4:
The Structure Gauge Envelope for existing Infrastructure over track that is not used by Electric
Motor Units shall comply with Envelope R. Note that:
a) The minimum horizontal clearances outlined in Envelope R applies to existing bridge piers,
retaining walls, lighting structures, verandah eaves and signals and electrification structures;
b) The minimum vertical clearances outlined in Envelope R applies to existing bridges, standard signal
structures, Verandah Eaves and lighting structures.
Note: The above absolute minimum clearances and those outlined in Figure 4 only apply to
rolling stock that meet the static envelope outlined in Appendix A, Figure 5. These absolute
minimum clearances do not apply to rolling stock that does not meet this static rolling stock
envelope.
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copy of this document is uncontrolled, and the content may be inaccurate.