Regarding the original intention of setting height limit rods at the on-ramp entrances of the elevated bridges in the provincial capital, a staff member of the Road and Bridge Management Department of Jinan Municipal Public Utilities Bureau said that this was to prevent some over-height and super-heavy vehicles from going up the bridge, causing damage or danger to the bridge. But considering some special emergencies, the height limit rods at the main on-ramp entrances of the elevated bridges were set as lift-type ones, which could be appropriately raised for passage. However, the staff member indicated that not all on-ramps were equipped with lift-type height limit rods due to factors such as maintenance.
As for whether fire trucks are considered as restricted over-height and super-heavy vehicles, according to the information obtained from the Jinan Public Security Fire Brigade, fire trucks generally have a height of more than 3 meters, which is usually higher than the restricted height of the bridge entrance. In terms of vehicle weight, the water tank fire trucks used for firefighting range from several tons to twenty or thirty tons. Therefore, when there is an emergency situation on the elevated bridge, general light rescue vehicles can go up, while heavier water tank fire trucks often adopt the method of hose relay firefighting both on and under the bridge.
"Originally, we could also choose to go up by reversing from the off-ramp." Captain Yao Wang of the Xiaowei Liu Road Fire Station of the Jinan Public Security Fire Brigade said that they dispatched a relatively lighter six-ton water tank truck, but later, considering possible traffic jams and unclear situations on the bridge, they adopted the form of hose relay firefighting.
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