New road surface maintenance of expressway using an On- Vehicle Salinity Sensor System which measures the salinity continuously

摘要

1. By utilizing the continuous salinity measurement device, road-surfacerncondition can be monitored linearly in real time.rn2. By utilizing the measurement data, a new approach to the optimumrnspraying operation considering safety and efficiency has becomernpossible.rn3. To assist in this operation, it is necessary to improve the device, forrnexample, data can be measured at the areas where there is little waterrnsplashed by tires, the sensor should be downsized, other functionsrnshould be added, and so on.rn4. Establish the new scientific road-surface maintenance method ofrnexpressways for the support of winter road management.