The Complete Guide to Traffic Diversion Plans (TDP) in Qatar

Road construction and infrastructure development in Qatar continue to grow, making Traffic Diversion Plans (TDPs) one of the most crucial requirements for contractors. Whether you are executing drainage works, utilities installation, asphalt milling, or emergency maintenance, no road work can begin without a properly approved TDP from Ashghal and the Ministry of Interior (MoI).

This guide explains everything contractors must know about preparing, submitting, and securing approval for TDPs in Qatar — along with the most common reasons for rejection and how to avoid them. This is the most complete, up-to-date reference for TDP compliance in 2025.

✅ 1. What Is a Traffic Diversion Plan (TDP)?

A Traffic Diversion Plan is an engineered layout that shows how traffic will be safely managed around a work zone. It includes:

• Signages
• Cones, barriers & tapers
• Lane closures
• Speed limits
• Pedestrian diversions
• Safety buffers
• Work zone protection
• Temporary detours
• Emergency access routes

Contractors must follow the WZTMG (Work Zone Traffic Management Guide) and QTCM (Qatar Traffic Control Manual) standards for all TDP drawings.

🛂 2. Why TDP Approval Is Mandatory in Qatar

Ashghal and MoI require TDP approval to ensure:

• Worker safety
• Road user protection
• Smooth traffic flow
• Reduced risk of accidents
• Compliance with Qatar traffic laws
• Protection of national infrastructure

Working without an approved TDP is illegal and can result in: ❌ Work stoppage ❌ Project delays ❌ Penalties ❌ Fine from MoI ❌ Contractor blacklisting.

🔍 3. Who Must Approve the TDP?

A standard TDP requires approval from:

1. Ashghal (Roads Department / Drainage / ROW): To verify that the diversion complies with standards.
2. The Ministry of Interior (MoI – Traffic Police): To ensure public safety and proper road management.

Some specialized works also require approvals from: QNBN, Kahramaa (Electricity & Water), Qatar Rail, Municipalities, or the Public Works Department.

📌 4. TDP Approval Process in Qatar (2025 Updated)

Here is a simplified step-by-step process used by professional TDP companies:

1. Step 1 – Site Survey & Risk Assessment: Identify hazards, traffic flow, pedestrian movement, and site risks.
2. Step 2 – Drafting the TDP: A certified Traffic Engineer prepares drawings following WZTMG, Qatar Traffic Control Manual, and MoI guidelines.
3. Step 3 – Internal Review: The plan is checked for accuracy, standards, and safety.
4. Step 4 – Online Portal Submission (QPRO): The contractor or consultancy submits the TDP online with the location map, work schedule, diversion drawings, safety measures, and STMS certificates.
5. Step 5 – Site Meeting (If Required): Authorities inspect the location before final approval.
6. Step 6 – Approval & Permit Issuance: TDP approval is issued with validity dates and conditions.

⚠️ 5. Top 10 Reasons TDPs Get Rejected (And How to Prevent It)

Many contractors face repeated rejections because of small mistakes. Here are the most common reasons:

🛠 6. Contractor Checklist Before Submitting a TDP

Use this checklist to ensure your plan is ready and to increase your approval success rate:

• Correct sign spacing (as per QTCM)
• Lane closures follow proper taper lengths
• Safety buffer included
• All signs are reflective
• Worker access clearly marked
• Pedestrian detour clearly shown
• Emergency route planned
• Speed limits updated
• Work zone protection measures included
• Approved symbols used
• QPRO file name format correct
• Contact number of STMS added

🚧 7. Why Good TDP Matters for Qatar Projects

A professionally designed TDP leads to:

• Faster approvals
• Zero stoppages
• Improved public safety
• Smooth traffic flow
• Lower risk of accidents
• Better project reputation
• Full compliance with Ashghal/MoI

In major infrastructure projects, TDP quality directly impacts project success.