What should be used for parking a car lengthways on the road in a built-up area?

Using parking lights on the side of the road is the appropriate choice when parking a car lengthways in a built-up area. Parking lights are designed to make your vehicle visible to other road users without blinding them. When you park, especially in areas with moving traffic, it's essential to alert other drivers to the presence of your vehicle. Parking lights achieve this by providing a light signal that indicates your car is stationary and occupying space on the road.

In built-up areas, where streetlights and other vehicles may obscure visibility at night, parking lights can help prevent accidents and ensure that your vehicle is seen by others passing by. They indicate that your vehicle is parked, which is crucial in preventing unexpected collisions in areas where vehicles are close together.

The use of sidelights, hazard warning lights, or standard headlights does not provide the same specific indication to other drivers that your vehicle is parked. Sidelights are more suited for situations where a vehicle is parked in a manner where it is necessary to see the vehicle but doesn’t indicate whether it is parked. Hazard warning lights suggest that there is an emergency or a specific hazard present, which is not the case when simply parking your vehicle. Standard headlights can create glare and may confuse other drivers about your intentions. Thus