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MRTS
MRTS260
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MRTS260 Temporary Variable Speed Limit Signs – Technical Specification
Department of Transport and Main Roads · March 2025
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Official source ↗
Pages
73
Sections
112
Searchable sentences
1,024
Status
Current
Contents
Copyright
p. 2
Licence
p. 2
CC BY licence summary statement
p. 2
Translating and interpreting assistance
p. 2
Feedback
p. 2
1
Introduction
p. 6
2
Definition of terms
p. 6
3
Reference documents
p. 7
4
Quality system requirements
p. 8
4.1
Hold Points, Witness Points and Milestones
p. 8
4.2
Samples for acceptance
p. 9
5
Functional requirements
p. 9
5.1
General operation
p. 9
5.2
Reliability
p. 10
5.3
Functional control methods
p. 10
5.4
Key TVSL operational components and general function
p. 10
5.4.1
Hardware
p. 11
5.4.2
Software
p. 12
6
p. 13
Technical requirements
p. 13
6.1
Device Processor (DP) requirements
p. 13
6.2
Permissible Frames (PF)
p. 14
6.3
Frame display time
p. 14
6.4
Flashing display control
p. 14
6.5
Watchdog
p. 14
6.6
Global Positioning System (GPS)
p. 14
6.7
Directional compass capability
p. 15
6.8
Turning motion sensor
p. 15
6.9
Short Range Controller (SRC)
p. 15
6.10
TVSL Sign Master / Slave pairing
p. 16
6.10.1
Master
p. 16
6.10.2
Slave
p. 16
6.11
Local Facility Switch (LFS)
p. 16
6.11.1
‘BLANK Display’ mode
p. 17
6.11.2
‘Display 40’ mode
p. 17
6.11.3
‘Display 60’ mode
p. 18
6.11.4
‘Display 70’ mode
p. 18
6.11.5
‘Display 80’ mode
p. 18
6.11.6
‘Display 100’ mode
p. 18
6.11.7
‘Display 110’ mode
p. 18
6.11.8
‘Remote’ mode
p. 18
6.12
Maintenance communications port
p. 18
7
Communication requirements
p. 19
7.1
General TVSL communications layout
p. 19
7.1.1
Device Processor (DP) and LED display (on the same trailer / concrete block)
p. 20
7.1.2
Master, Slave DP(s) and SRC(s)
p. 20
7.1.3
Configuration software and DP
p. 20
7.2
Remote site communications
p. 21
7.2.1
DP and RSCS
p. 21
7.2.1.1
STREAMS as the RSCS
p. 21
7.2.1.2
External systems as the RCSC
p. 21
7.2.2
DP and critical alert SMS notification system
p. 22
7.3
Communications timeout
p. 22
7.4
Communications identifiers
p. 22
7.4.1
Device Processor (DP) ID
p. 23
7.4.2
SRC ID
p. 23
8
Software requirements
p. 23
8.1
Remote Sign Control System (RSCS) software
p. 23
8.1.1
Software user interface and security
p. 24
8.2
TVSL configuration / maintenance software (via direct connection)
p. 24
8.3
Configuration management
p. 25
8.3.1
Device Processor (DP) configuration
p. 25
9
TVSL sign monitoring, reporting and alarm requirements
p. 25
9.1
Sign monitoring and logs
p. 25
9.2
Alarms
p. 26
9.3
Critical faults
p. 27
10
Mechanical and physical requirements
p. 27
10.1
General
p. 27
10.2
Trailer
p. 28
10.2.1
Static speed limit sign
p. 28
10.2.2
Flashing Yellow Alert Light
p. 28
10.2.3
Dimensions
p. 29
10.2.4
Wind loading
p. 30
10.2.5
Storage compartment
p. 30
10.2.6
Stabilisers
p. 30
10.3
Sign enclosure
p. 30
10.3.1
Sign enclosure dimensions
p. 30
10.3.2
Doors
p. 31
10.3.3
Front cover
p. 31
10.3.4
Enclosure material and coatings
p. 31
11
Electrical requirements
p. 31
11.1
Portable signs
p. 31
11.2
Fixed signs
p. 32
11.3
Power system monitoring
p. 32
12
Sign display requirements
p. 32
12.1
Display technology
p. 32
12.2
LED output
p. 32
12.3
Character format
p. 32
12.4
Display changes
p. 33
12.5
Display colour
p. 33
12.6
Default display
p. 33
12.7
Red annulus
p. 34
12.8
Flashing display elements
p. 34
12.8.1
Flashing partial annulus
p. 34
12.8.2
Conspicuity devices
p. 34
12.9
Optical performance
p. 34
12.9.1
Test procedures
p. 34
12.9.2
Luminance
p. 35
12.9.3
Luminance intensity half angle
p. 35
12.9.4
Sun phantom
p. 35
13
Documentation requirements
p. 35
14
Testing, configuration and commissioning requirements
p. 35
15
Training requirements
p. 35
16
Maintenance requirements
p. 35
17
Handover requirements
p. 35
18
Type approval Checklist
p. 35
Appendix A
Referenced variables and default settings
p. 36
Appendix B
TVSL sign blanking conditions
p. 37
Appendix C
Full listing of speed limit frame designations
p. 38
Appendix D
Type Approval Compliance Checklist
p. 39
10
Mechanical and physical requirements
p. 62
12
Sign display requirements
p. 69
