Traders in Port Talbot have set up a petition against the possible closures of the M4 junctions leading to their town.
Proposals have been made to close slip roads at junction 40 and 41 - two of the main entrances in and out of Port Talbot - for a six month trial over the summer months.
The Welsh Government says it is looking to reduce traffic congestion in the area, but no decisions have yet been made.
More top news
The charity says the increase is partly due to people calling for help sooner, instead of attempting to rescue themselves.
Staying windy with occasional rain, sleet and snow showers and a risk of ice patches forming
A worker at Prince Charles Hospital in Merthyr Tydfil who stole NHS property and then sold it on eBay is given suspended jail sentence.