Abstract
Information obtained from authorities operating road heating installations is used to assess their cost and performance. Construction methods are described and power requirements are given. The use of uninsulated steel mesh as a conductor at not more than 50 volts has been found to be generally more reliable than insulated cable at a higher voltage. The average capital cost of road heating installations to date has been l4.64 per square metre and the average operating cost l0.15 per square metre per annum. The method costs 15 - 30 times the cost of chemical treatment.