The aim of the project is to create a so-called turbo roundabout and bicycle traffic facility in Kecskemét in the frequented junction between Bem utca — Kuruc körút. The node concerned by the investment is currently controlled by a signal lamp. From the central inner part of Kecskemét the city can be approached in the north-east direction and the main road 44 (Tiszakécske, Békéscsaba, Szolnok) can be approached from the county seat through the junction to be rebuilt. The need for the planned development is justified by the fact that the operation of the current node during peak periods is characterised by very significant congestion — several Saxons in length — which makes it particularly dangerous for accidents in its current state. By creating the roundabout, the current intersection will be safer, fewer accidents occur due to the priority of the orbital and the speed-reducing effect of the use of the Central Island. With lower speeds, the permeability of the node increases and fewer conflict points occur. It is also important that, in addition to a more continuous traffic flow, environmental damage, noise and air pollution, as well as average time loss and average transport costs are also reduced from an economic point of view. In addition to the roundabout, there is a separated walking and cycling path, which helps to improve the conditions of cycling, access to public services and jobs, reduce environmental pressures and promote and create conditions for healthy lifestyles. The main characteristics of the road junction affected by the development — Kuruc boulevard on the side of Rákóczi út has a width of 2 x 2 lanes. — Kuruc boulevard E to 75 roadwards with a width of 2 x 2 lanes. — BEM u., built at the junction with 1 + 2 traffic lanes. — Szolnok road operates with 2 + 1 traffic lanes. The Békéscsabai Road — the bicycle road next to Ceglédi út, and the service road next to the former KTE track leading to the railway area, is connected to a junction. — Junction traffic control is currently provided by a signal lamp system. — The technical condition of the surface of a junction road surface requires significant intervention. (structural cracks, surface potholes, local deformations, fallen edges....) Summary description of the planned technical solution Turbo circular junction design — main characteristics and requirements of construction Main geometric data: Diameter of the inner circle of turbo circle: 10.50 m Outer beam of the outer band: 15.85 m Internal radius of inner lane: 16.15 m. Inner band outer radius: 21.15 m Inner lane width: 5.35 m Outer lane szélessége:5.0 m. Planned pavement widening track structure strata: 50 cm thick, 95 % compacted subsoil, 25 cm thick sandy gravel bed, 20 cm thick C 12/15 concrete. 7 cm thick Ac — 16 asphalt road base 7 cm thick AC — 11 j. asphalt binding layer, 7 cm thick AC — 11 j. asphalt wear layer. Covering structure built on an existing surface: Milling of existing surface as needed, 7 cm thick AC — 11 j. asphalt binding layer, 7 cm thick AC — 11 j. asphalt wear layer (as required). During the construction of a widening structure, in the construction of new and old track structures, under the asphalt base and asphalt binding layer, GRG 200 Roadtex asphalt fabric is to be installed in a width of 50-50 cm. Stratum of planned footpaths and common walking paths and cycle paths: 50 cm thick, 95 % compacted subsoil, 20 cm thick sandy gravel bed, 15 cm thick Ckt. ground, 3 cm thick noble crushing loins, 20 x 10 x 6 cm grey seamless concrete paneling. Structure of the track structure of the planned cycle path: 50 cm thick, 95 % compacted subsoil, 20 thick cm sandy gravel bed, 15 cm thick Ckt. ground, 3 cm thick noble shredder loins, 20 x10 x6 cm seamless anthracite color seamless concrete elementary covering. Layer order of the gateway: 50 cm thick subsoil compacted to 95 % degree, 20 cm sandy gravel bed, 15 cm thick Ckt. ground, 3 cm thick noble crushing loins, 20 x10 x6 cm grey concrete panel. Rainwater drainage on the surface of the casing shall be ensured by correcting the existing urban closed drainage. Track structure of the service road: 50 cm thick, 95 % compacted subsoil, 20 cm sandy gravel bed, 20 cm thick Ckt. ground, 3 cm thick noble chip ground, 20 x10 x8 cm grey concrete panel. Characteristics of the traffic technical design Planned solution will result in a significant modification of the existing traffic layout. The traffic system of the turbo circular node, the required classification on the node branches, shall be provided by placing signals above the traffic lanes. The positioning of the mark above the lanes on Szolnoki út by the construction of a bracketed steel structure, the holder built on Kuruc Boulevard on both sides of the road and in the separating island