These guidelines emphasize the installation of larger, more prominent speed limit signs every 10 kilometers. Additionally, 'No Parking' signs are to be placed every 5 kilometers, along with signage displaying emergency helpline numbers. Directional signage is mandated for heavy and slow-moving vehicles, guiding them to stay in the left lane. Such signs must be placed at least 2 kilometers before exit points on expressways and highways. Furthermore, signs indicating roadside amenities should be placed 5 km, 2 km, and 1 km before the respective locations.
These measures aim to enhance road safety by providing clear and frequent information to drivers, assisting them in making informed decisions while navigating expressways and highways.