State and local transportation agencies were contacted about their use of Crack Sealing Machine equipment. Overall, each agency provided favorable endorsements about Crack Sealing Machine. The majority of agencies are using trailer units. Self-propelled units are being used in some big cities, like: Shanghai, Shenzhen and so on.
There was quite a variation in how the Crack Sealing Machine units are employed among the some agencies. Half of the stated are comfortable using the equipment to patch different kinds of pavement. All were using the units to patch asphalt pavements. On asphalt pavement, Crack Sealing Machine can repair alligator cracking, transverse cracking, edge breaks, depressions and rutting.
The agencies differed somewhat on their pre preferences for type of equipment. The ones using the self-propelled units are pleased with their operation. It allows them to reduce their crew size by one person. Additionally, they believe the units are much safer for their employees to operate because of the remote cab controls.
