A bollard is an individual post usually anchored in concrete and constructed with steel to serve as a deterrent to obstruct the flow of vehicles from the desired direction while providing pedestrians with free passage. Fixed and retractable bollards come in different heights and operating types, state of the art. As vehicles approach, the fully automatic hydraulic and electromechanical smart bollards are normally operated by sensors to recline. They are engineered to withstand high impacts and deflect potential blows away from the target or area where they are best positioned to obstruct vehicles accessing restricted areas and are suitable for historic buildings, museums, art galleries and vital facilities such as embassies, etc.