Abstract: Disclosed is a base comprising a holding device for holding an object that is to be erected, the base having a receiving region for receiving a removable ballast weight in a receiving position. The receiving position lies radially outwards and starting from the receiving position, at least some sections of the base have a raised region arranged radially inwards in the direction of the periphery.

Abstract: Disclosed is a base comprising a holding device for holding an object that is to be erected, the base having a receiving region for receiving a removable ballast weight in a receiving position. The receiving position lies radially outwards and starting from the receiving position, at least some sections of the base have a raised region arranged radially inwards in the direction of the periphery.

Abstract: In a method for recognizing disruptions in road traffic within a road sector that is to be monitored at respective measurement cross-sections at the beginning and at the end of the sector, the number and the speed of the vehicles passing through the measurement cross-sections are continuously acquired as measured data, which are collected and compiled cyclically during finite measurement intervals to provide average values of the traffic flow and the speed, and are then evaluated. Each measurement cross-section thereby encompasses all lanes of traffic that can be used in one direction of travel.