Traffic signs and signals in Saudi Arabia are the regulatory, warning and guide signs, overhead sign structures, signal heads, controllers and message signs installed on highways and city streets. This page lists Saudi suppliers and explains what the Saudi Highway Code manual SHC 602 requires for sheeting, retroreflectivity and signal lenses, how desert heat affects equipment, and what moves price and lead time in the Kingdom.
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Traffic signs and signals are the devices that regulate, warn and guide road users by day and night. In Saudi Arabia they are part of road construction products for Saudi highways and cities, bought by the Roads General Authority's contractors, municipalities (amanahs), industrial city and giga-project developers, and maintenance companies on long highway contracts.
SHC 602, the Manual on Uniform Traffic Control Devices in the Saudi Highway Code, groups devices into regulatory, warning and informative (guide) signs, signals and temporary traffic control. Each group carries different supply requirements.
| Type | Where Saudi buyers use it | What SHC 602 and specifications ask for |
|---|---|---|
| Regulatory and warning signs | Speed, stop, give way and hazard signs on intercity and urban roads | Retroreflective sheeting ASTM D4956 Type IV, sign shapes and symbols per SHC 602 |
| Ground-mounted guide signs | Exits, destinations and route signs, Arabic and English | Type XI sheeting where the background is not white; Naskh Arabic and Transport English lettering |
| Overhead guide signs and sign bridges | Ring roads in Riyadh and Jeddah, interchanges, expressways | Type XI sheeting, minimum 5.5 m vertical clearance, illumination where possible |
| Traffic signal heads | Signalised junctions and pedestrian crossings | Circular 300 mm lenses (200 mm and 100 mm in set cases), LED allowed, red, amber and green only |
| Dynamic message signs | Incident, weather and diversion messages on highways | Location upstream of decision points, LED display performance, enclosure rating |
| Temporary traffic control devices | Widening, overlays and junction works next to live traffic | Barricades, arrow panels, cones and road work signs to the SHC 602 work zone chapter |
Signs work with road marking paint, thermoplastic and studs on the pavement, and sign posts and gantry legs on fast roads are often shielded by highway guardrails and concrete barriers. Workplace and plant signs belong under safety signage and site barriers.
SHC 602 requires all sign faces to be retroreflective, names ASTM D4956 Type IV for normal regulatory and warning signs and white-background guide signs, and Type XI for ground-mounted guide signs with non-white backgrounds and for all overhead signs. It also sets minimum retroreflectivity levels that the road owner must maintain over the sign's life.
Table 3-4 of SHC 602 lists minimum values in candela per lux per square metre, measured at 0.2 degree observation and minus 4 degree entrance angles. For example, white on overhead guide signs must stay at or above 250, and on post-mounted white on green guide signs at or above 220. Owners are told to keep signs above these levels by night inspection, measurement with a retroreflectometer, or replacement at a known sign age. That makes sheeting durability, not just initial brightness, the thing to compare between bids.
Vehicular signal lenses must be circular with a 300 mm visible diameter; 200 mm lenses may be used for near-side ground-mounted disc signals and 100 mm lenses as auxiliary signals. The 300 mm lenses may use LED displays instead of incandescent lamps. No signal head may show more than five indications. SHC 602 points to other Highway Code parts (SHC 306, SHC 601 and SHC 403) for signal design and equipment specifications, so ask the client which parts apply.
Inland sun, dust storms and wide temperature swings fade faces and stress electronics, while Jeddah, Yanbu, Dammam and Jubail add humid salt air that attacks steel posts and fixings. Ask for galvanised steel with certificates, rated operating temperatures for controllers and message signs, and dust-tight enclosures.
As of 2026, the Saudi Highway Code issued by the Roads General Authority is the technical reference for Saudi roads, and SHC 602 is its traffic control devices manual. Gulf News reported in September 2024 that the code became mandatory for government projects from 2025 and for private entities from 1 June 2025.
| Requirement | Applies to | Authority or source |
|---|---|---|
| SHC 602 Manual on Uniform Traffic Control Devices | Sign design, sheeting, retroreflectivity, signals, temporary traffic control | Saudi Highway Code, Roads General Authority |
| Guidance sign lettering: Naskh for Arabic (Madinah font in the Madinah region), Transport for English | Guide signs on Saudi roads | Roads General Authority, Saudi Highway Code |
| ASTM D4956 Type IV and Type XI | Retroreflective sheeting on sign faces | Named in SHC 602; declared by sheeting maker |
| GSO EN 12899-1:2024 | Fixed sign assemblies, faces, sheeting and supports | GCC Standardization Organization, named in project specifications |
| Product conformity for imports | Imported sign materials and electrical equipment covered by SASO technical regulations | SASO through SABER |
| Client vendor lists | Projects in Royal Commission cities, ports and giga-projects | The developer or operator |
SHC 602 also allows portable plastic safety barriers to SASO 2980 (2022) in barricade layouts on work zones. Check with your notified body whether imported signal controllers, LED modules or message signs need a SABER product or shipment certificate under the electrical regulations; our guide to SASO and SABER certificates explains the process.
Saudi signs come from local fabricators that apply imported sheeting to aluminium plate, often as part of supply and install contracts; signals and message signs come from international makers through Saudi integrators. Road contractors usually subcontract the whole signing and signal package.
Ask Saudi bidders for: the sheeting brand and ASTM D4956 type per sign, matched to SHC 602; the maker's retroreflectivity data and warranty; lettering in the approved fonts; galvanising and gantry design calculations; SABER status for imported electronics; and a maintenance offer for retroreflectivity checks. Sign gantries often share foundations with street and highway lighting, so coordinate the two. See our sourcing guide for Saudi and UAE buyers, or post your sign and signal package with the sign schedule and project city.
The mix of Type IV and Type XI sheeting, sign sizes, overhead structures and signal integration drive Saudi prices; client approval, imported sheeting and electronics, and haul distance drive lead time.
