WAYS TO CREATE A SAFE ENVIRONMENT FOR TRAVELLING ON PUBLIC ROADS OF WITHIN SETTLEMENTS

Abstract

The ways of creating a safe environment for travelling on the roads of settlements are highlighted. The reasons that create a dangerous environment for travelling on the roads of settlements are considered. The expediency of improving the locking mechanism of manhole cover is highlighted. The literature sources devoted to the improvement of the lock mechanism of manhole cover manhole cover have been analysed. The main disadvantages of manhole covers are revealed. It is established that the existing designs of manhole covers cannot provide a safe environment for travelling on the roads of settlements. The design of manhole cover is proposed, which differs from the existing ones in that it has one axial through hole in the centre of the plate, and the locking devices are connected with each other by means of a plate. The plate may be of any shape, such as rounded or polygonal. The plate has a central axial hole of oval shape and peripheral holes of rounded shape to which the counterweights of the locking devices' rocker arms are attached by means of hooks. It is shown that due to the presence of the plate with a central axial and peripheral holes, the locking devices are connected in a single locking mechanism. It is shown that by having a central axial hole in the plate, it is possible to operate the locking devices simultaneously. It is shown that, due to the presence of a single axial through hole made in the centre of the plate, it is possible to access the central axial hole in the plate. It is shown that due to the presence of a spring, the locking mechanism, when the cover is installed, closes spontaneously. It is established that the proposed design of the locking mechanism of the manhole cover reduces the cases of traumatism due to pedestrians and vehicles getting into the manhole shaft. This provides a safe environment for the movement of pedestrians and vehicles on the roads of settlements.