The operator of the BTS Skytrain has called on passengers to refrain from flicking or tossing their hair while travelling during peak hours, warning that loose locks could accidentally strike fellow commuters in the face, shoulders, eyes or mouth.

Passengers with long hair are urged to hold their tresses in place when turning their heads, walking past others or boarding and alighting from trains.

“Let’s build a courteous travel culture and show consideration for one another to maintain a pleasant journey for all,” the operator said in a social media post.

And just as a refresher, here are some other etiquette tips for using the Skytrain system:

Conduct on board

Passengers are advised to hold handrails, straps or poles while travelling, and to offer their seats to children, pregnant women, the elderly, the disabled, and Buddhist monks and novices. Passengers should also keep a close watch on their belongings at all times and notify train staff immediately in the event of an emergency.

Prohibited on board

Passengers must not lean against or obstruct doors or poles, place their hands near carriage doors, block aisles with luggage, or eat and drink inside carriages.

On the platform

Passengers are asked to queue behind the yellow line, allow alighting passengers to exit first, mind the gap between the platform and the train, and stop boarding when the door-closing signal sounds. Anyone whose belongings fall onto the tracks should immediately inform station staff.

Prohibited on the platform

Running, pushing, horseplay and entering the tracks or restricted areas at platform ends are strictly forbidden.

At the station

Passengers are asked to follow all announcements, keep the premises clean, and report any suspicious persons or objects to staff without delay.

Prohibited at the station

Smoking, bringing flammable or hazardous materials, carrying animals, eating and drinking, bringing oversized or heavy luggage, vandalism, wearing roller skates or wheeled shoes, skateboarding, cycling and causing excessive noise or disturbance are all prohibited within the BTS system.