The speed camera in question had 17,000 activations per year. Cut that fucker down or increase the speed limit. That's ~ two speeding tickets per hour. Every hour, day and night for an entire year.
Assuming most end with a reasonable fine, that single camera probably brings in over 700k per year.
The best thing to do would be to redesign the road, but the local council probably doesn't have money to do that. But drivers should be able to follow a speed limit, it's pretty basic.