A gantry spans the carriageway overhead, putting the display directly in the driver's line of sight rather than off to one side. That head-on angle is the reason gantries command a premium at flyover approaches, toll plazas and major junctions — the traffic cannot look past them.
Format is a means, not the decision. Start from where your audience actually is and how long they have to read the message — then pick the format that fits. If a different one fits better, the formats overview compares the alternatives.
Live monthly rates — gantries on HoardSpace
Measured from listings currently live on HoardSpace, not an industry estimate. What a specific site costs depends on:
Check availability for your campaign dates on the listing, then take it through to a confirmed booking.