• Plain background and in a single colour only. Red, Orange, Yellow, Amber colours are not allowed as these are similar to those used for "Roadwork", "Caution" signages;
• Directional arrow and the name of the development in simple font type only. The use of graphics, borders and special font types are not allowed;
• LTA's approval reference, expiry date and the number of signs approved, are to be printed and remain clearly visible throughout the period of display. These details are to be shown at the back of the signs in black letters on white background (font type: Times New Roman, font size: 50). All applications are subjected to the approval of the Authority.

This information is sourced from LTA