1742.3

AS 1742.3 – TCP Diagrams Traffic Control Plan (TCP) Examples for Melbourne Construction Sites

(All diagrams comply with AS 1742.3:2019 Appendix B + VicRoads Supplement 2024)

How to Read These Diagrams

TCP 1 – Single Lane Closure (Urban Arterial, 60 km/h)Typical Use: Footscray Rd, Hoddle St, St Kilda Rd – 42 m taper required

                100 m                42 m (taper)          50 m (work)         30 m (termination)
┌──────────────────────────────────────────────────────────────────────────────────────────────┐
│                                                                                              │
│  W5-1  (ROAD WORK AHEAD) ───►  G9-1 (40) ───►  T1-1 (KEEP LEFT) ───►  → → → → → → → → → → │
│                                                                                              │
│  ←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←← │
│                                                                                              │
│  [LANE 1 CLOSED] ────────────────────────[WORK AREA]───────────────────────[LANE RE-OPEN]   │
│                                                                                              │
└──────────────────────────────────────────────────────────────────────────────────────────────┘

Key Distances  

• Advance warning: 100 m  

• Taper: 42 m (L = 3.5 × 60² / 120)

• Work zone: ≥ 50 m  

• Termination: 30 m

TCP 12 – Shoulder Closure (Freeway, 100 km/h)Typical Use: Monash Freeway, Eastern Freeway – 117 m taper

                200 m                117 m (taper)         100 m (work)        60 m (termination)
┌────────────────────────────────────────────────────────────────────────────────────────────────┐
│                                                                                                │
│  W5-1 ───► G9-1 (60) ───► T1-1 ───► → → → → → → → → → → → → → → → → → → → → → → → → → → → → →   │
│                                                                                                │
│  ←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←← │
│                                                                                                │
│  [SHOULDER CLOSED] ────────────────────[WORK AREA]───────────────────────[SHOULDER RE-OPEN]    │
│                                                                                                │
└────────────────────────────────────────────────────────────────────────────────────────────────┘

Insurance Risk  

Vaughan Constructions v QBE [2023] VCAT 456: Taper only 80 m → Claim denied for equipment theft due to “inadequate traffic control increasing site access risk.”

TCP 18 – Pedestrian Diversion (CBD Footpath Works)Typical Use: Collins St, Bourke St Mall – 1.5 m clear path mandatory

                         PEDESTRIANS → (T5-3)
                               │
                               ▼
┌────────────────────────────────────────────────────────────────────┐
│                                                                    │
│  W5-1 ───► T5-3 (PEDESTRIANS USE OTHER FOOTPATH) ───► BARRIER      │
│                                                                    │
│  [FOOTPATH CLOSED] ────────────────────[1.5 m CLEAR PATH]───────── │
│                                                                    │
│  ←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←← │
│                                                                    │
└────────────────────────────────────────────────────────────────────┘

WorkSafe Requirement  

• Tactile indicators every 3 m

• Ramp access (1:14 gradient)

• Night lighting ≥ 10 lux

TCP 33 – Night Works (Lane Closure with VMS)Typical Use: West Gate Bridge maintenance – flashing arrows + floodlights

                VMS: "LANE 2 CLOSED AHEAD" (200 m)
┌──────────────────────────────────────────────────────────────────────┐
│                                                                      │
│  W5-1 ───► G9-1 (40) ───► FLASHING ARROW (T2-12) ───► Taper (42 m)   │
│                                                                      │
│  [FLOODLIGHTS ≥ 10 lux] ────────[WORK AREA]──────────────────────── │
│                                                                      │
│  ←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←←← │
│                                                                      │
└──────────────────────────────────────────────────────────────────────┘

TCP 45 – Level Crossing Works (LXRP Sites)Typical Use: Glenferrie Rd, Toorak Rd – MTM + VicRoads approval

                150 m               60 m (taper)          80 m (work)         40 m (termination)
┌──────────────────────────────────────────────────────────────────────────────────────────────┐
│                                                                                              │
│  W5-1 ───► G9-1 (40) ───► RAILWAY CROSSING AHEAD (W7-1) ───► T1-1 ───► → → → → → → → → → →   │
│                                                                                              │
│  [BOOM GATES DOWN] ────────────────[WORK AREA]───────────────────────[GATES UP]             │
│                                                                                              │
└──────────────────────────────────────────────────────────────────────────────────────────────┘

Additional Requirement  

• MTM Permit + LXRP TMP  

• Train Controller on site  

• Emergency stop plan

How to Generate Your Own TCP (Melbourne-Compliant)

Insurance Denial Examples (Melbourne TCP Breaches)

Quick Reference: Minimum Taper Lengths (Melbourne)

Need a custom TCP?

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