Nepal Road Signs & Traffic Signals: Mandatory, Warning, Informatory

Nepal's road signs exist to do three jobs: to regulate, to warn, and to inform. The Department of Roads (DoR) under the Ministry of Physical Infrastructure and Transport (MoPIT) sets these standards in its Traffic Signs Manual, first issued in 1997 (2054 BS) and updated in a later 2018 edition. Nepal Police's Traffic Directorate mirrors the same three-way split on its public traffic-signs page: regulatory/mandatory (नियामक/अनिवार्य), warning (चेतावनी), and information (सूचना) signs.

The clever part of the system is that each function has its own shape, so a driver can recognise a sign's purpose before reading it. Circular signs give orders (regulatory/mandatory and prohibitory). Triangular signs with a red border and the apex pointing up give warnings. Rectangular signs give information. This shape-first logic is why examiners and instructors tell licence candidates to memorise shape and colour first, then the symbol.

Nepal drives on the left, and its sign design is historically influenced by the United Kingdom system rather than being a pure Vienna Convention set. That heritage shows in the layout, colour palette, and the triangular warning shape. Signs are catalogued with codes in the manual, so a single sign may be referred to both by name (for example, 'Pedestrian crossing ahead') and by its manual reference.

Regulatory signs tell you what you must, or must not, do, and disobeying them is a traffic offence. The manual splits them into two families. Mandatory signs give a positive instruction — an action you are required to take — the classic examples being 'Stop' and 'Give way'. Most other mandatory signs, such as 'Keep left', 'Turn left ahead', or 'Compulsory ahead', are circular with a white symbol and border on a blue background.

Prohibitory signs are the other half of the regulatory group. They tell you what you must not do, and are typically circular with a red border on a white background. Common examples in Nepal include 'No entry' (प्रवेश निषेध), 'No parking' (पार्किङ निषेध), 'No stopping', 'No overtaking', 'No U-turn', and turn bans such as 'No right turn' (दाहिनेतिर मोड्न निषेध) and 'No left turn' (बायाँ मोड्न निषेध). Speed-restriction signs such as 'Maximum speed' also fall here.

The 'Stop' sign is the one exception to the circular rule: it is an octagon, a shape reserved worldwide so it can be recognised even when snow, dust, or a fallen angle hides its face. On Nepali roads, 'Stop' and 'Give way' are frequently placed at junctions, single-lane bridges, and pedestrian crossings on hilly highways, where a full halt and a check of the road are legally required before proceeding.

Warning signs alert road users to a potentially dangerous situation on the road ahead so they can slow down and prepare. Almost all take the form of an equilateral triangle with the apex uppermost and a red border, carrying a black symbol on a white background. Because they anticipate a hazard, they are positioned well before it — the higher the speed of the road, the further in advance the sign is placed.

Warning signs are especially important in Nepal because of the country's mountainous terrain and monsoon climate. Signs for 'Sharp curve' (left or right), 'Series of bends', 'Steep descent', 'Slippery road surface', 'Falling rocks / landslide area' (पहिरो क्षेत्र), and 'Narrow bridge' are common along hill and highway sections. Others warn of human and animal activity: 'Pedestrian crossing ahead', 'School / children ahead', and 'Cattle ahead'.

Junction and infrastructure warnings round out the group — 'Crossroads ahead', 'Side road', 'Roundabout ahead', 'Roadworks ahead', 'Speed breaker / hump ahead', and 'Level crossing ahead'. For the likhit exam, candidates should be able to distinguish a warning triangle (danger is coming) from a regulatory circle (an order applies here), since the two are often confused when the symbol inside looks similar.

Informatory (information) signs give drivers the guidance they need to find their way and locate services. Unlike orders or warnings, they carry no legal compulsion — they help rather than command. They are generally rectangular, and Nepal uses blue or green backgrounds for direction and facility signs, following the manual's colour scheme.

This group includes direction signs — showing destinations, distances in kilometres, and route directions — and facility signs marking amenities. Familiar examples on Nepali roads are 'Hospital' (अस्पताल), 'First aid / primary care' (प्राथमिक उपचार केन्द्र), 'Petrol pump / filling station' (पेट्रोल पम्प), 'Parking' (पार्किङ), 'Bus stop', 'Hotel', and 'Telephone'.

Some informatory signs also confirm a situation rather than order it — for instance, 'One-way street', 'Pedestrian crossing' (the zebra-crossing information plate, distinct from the warning triangle), or 'No through road / dead end'. For everyday driving these signs reduce guesswork; for the exam they are usually the easiest group to score because the pictogram directly depicts the facility.

Traffic-light signals work alongside signs and carry the same legal force. Per the Nepal Police Traffic Directorate, a steady RED means bring the vehicle to a complete halt behind the stop line or crosswalk. AMBER (yellow) means caution — stop if you have not yet entered the intersection; do not treat it as a signal to accelerate. GREEN means proceed through the intersection carefully when the way is clear.

Flashing signals modify these rules. A flashing RED requires a complete stop, after which you may proceed when it is safe (like a stop sign). A flashing AMBER means drive with caution without a mandatory stop. Pedestrian signals follow the same colour logic: a steady red figure means do not cross, a steady green figure means walk cautiously, and a flashing figure warns those already crossing to finish quickly.

Road markings are the third element of traffic control. A continuous (solid) centre line must not be crossed for overtaking, while a broken line permits overtaking when safe. Stop lines, zebra (pedestrian) crossings, lane arrows, and edge lines all reinforce the messages given by signs. In the likhit syllabus, signal colours and line rules appear as frequently as the sign pictures themselves, so both should be studied together.

Nepal's written (likhit) driving-licence test, administered by the Department of Transport Management (DoTM), draws heavily on traffic-sign recognition. The most reliable strategy is to learn the system, not just individual pictures: fix the shape-and-colour rule in memory first, then the meaning of each symbol becomes easier to deduce even for signs you have not seen before.

Group your revision by function. Regulatory and warning signs carry the most exam weight because they govern legal behaviour and safety, so prioritise them over informatory signs. Practising with mock tests that mix all three groups trains you to categorise a sign in a second, which is exactly what the multiple-choice format rewards.

Learn each sign with both its English and Nepali name, because official study material and questions may use either. A downloadable one-page summary that lists every sign by category, shape, colour, and bilingual name is the most efficient revision aid — print it, cover the meanings, and test yourself until recall is automatic. When ready, run a full timed mock test to confirm you can apply the rules under exam conditions.