Have you been wondering what the orange CMA markers are for?
Recently Council put up CMA signs on ice-prone areas in the district, this indicates that these areas will be treated with liquid calcium, magnesium, accitate (CMA) during the winter to prevent icy build-up. CMA is a better alternative to gritting the road, is more effective, safer and is better for the environment.
Facts about CMA
- CMA is granulated calcium magnesium acetate, a combination of dolomitic lime and acetic acid. CMA is non-corrosive and biodegradable.
- CMA is acetate based, it has unique performance characteristics that reduce ice formation and snow bonding to the road by interfering with the ability of particles to adhere to each other and to the road surface. It can prevent frosts from forming and allow traffic to break up light ice formation.
- CMA chemically ties up the first moisture melted as water of hydration resulting in very little runoff. CMA keeps the snow ‘dry’ which prevents snowpack under vehicle action assisting in easy removal of the snow.
- CMA is the preferred treatment for ice reduction on road surfaces in New Zealand. It is quick and easy to apply, safer than grit for motorists, and there are no clean-up costs. Furthermore, wear and tear on road markings and damage to vehicles is virtually eliminated.
Road conditions can change rapidly, we encourage road users to take care, to drive to the conditions, and be aware of the risks on winter roads.
Winter Driving Tips:
· Carry chains and know how and when to fit them.
· Plan extra travel time and slow down.
· Winter conditions are still hazardous for four-wheel-drive vehicles.
· Check the road conditions before you leave.
· Ice can occur at any time of day.
· Take extra care on bridges.
· Increase your following distances in winter conditions.
Travel safely everyone, and don’t forget to ensure your car windows are free of snow and ice - you can receive an instant fine if you don't.