GEOMETRIC ANALYSIS OF THE ROUNDABOUT OF THE PEACE MONUMENT IN THE CITY OF HUAQUILLAS

Abstract

It is intended to determine a new geometry for the intersection, which allows to guarantee the safety and fluidity of traffic, based on the Federal Highway Administration (FHWA) manual and following the premise of avoiding invading the properties adjacent to the road with the new projection. secondary that connects with the roundabout. The investigation is approached starting from a simple observation when driving inside the roundabout and noticing that the route is messy. It is decided to carry out a topographic survey to know the existing geometry, for this the photogrammetric method was used with aerial images obtained with a quadcopter drone. A vehicle capacity was necessary to determine the relation of demand - capacity of the intersection, this was executed in a period of seven days. Subsequently, with traffic analysis software, said percentage was verified; and with a CAD design program a verification was carried out to validate the new geometry proposed. It was found that the deflection islands of the main street do not have adequate turning radii for the size of the central island, with around 20 meters at the accesses, and do not direct traffic smoothly towards the two-lane traffic ring. For their part, the deflection islands of the secondary street do not respect the width of the traffic ring and become an obstacle for vehicles that have already entered the roundabout. In addition, they cause vehicles from the outside lane to invade the inside lane.