The vehicle sprays the cycle path with a brine solution, rather than rock salt, as this is the preferred product for treating cycleways.
The trial coincides with the installation of a permanent two-way cycle route which has replaced a temporary facility, allowing cyclists to safely connect to the existing cycle network.
The council has also started on work to improve pedestrian crossing points and deliver a space for cycling. It is also introducing a 20mph speed limit in the town centre
The county council undertook the work following the award of a total £9m from the Department for Transport as part of the Active Travel Fund, which supports local authorities to create safer, easier to use spaces for those who cycle and walk.
Cllr Phil Bibby, executive member for Highways and Transport, Hertfordshire County Council said: ‘These developments to the town centre in Welwyn Garden City will significantly improve the cycling and walking opportunities for local residents and visitors and I’m pleased that the works are progressing well. I’m also pleased that we’re trialling a new gritter which will ensure that cycle paths will be safer to use when we experience colder weather.
‘Our Corporate Plan sets out the vision for a cleaner, greener, healthier Hertfordshire. Providing safe and easy ways for people to walk and travel by bike is key to making this become a reality.’