Portal de Murcia
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Involves an investment of 1,579,065 euros and will be operational in early summer
Allow for increased capacity and traffic safety in connection with Round Round South West Murcia.
The government delegate in Murcia, Rafael González Tovar, and the Chief Provincial Road Demarcation of the State, Angel Luis García Garay, this morning visited the works to improve the binding of Santa Catalina started in February 2008, amounting of 1.57 M € and a lead time of 18 months.
González Tovar has been reported that the existing terrain in the area, the works have required special work to prevent further consolidation differential settlement, or decreases in the pavement.
To this end, the project set the execution in two years' (2008 and 2009), with an investment of 789,532 respectively.
He noted that the date of completion of the work originally planned, according to the contract signed in 2008, is the August 29, 2009, but thanks to the good progress made, is expected to advance the commissioning of the same.
Current Situation and objective performance
The Government delegate explained that the average daily circulation in this area in 2007, before the start of construction, had arrived in the trunk highway of 143,681 vehicles per day.
To this was added to the circulation in Ronda Oeste de Murcia has been growing for several years, why it was considered necessary to remodel the link on this road with the Ronda Sur de Murcia, giving the stage for greater capacity and security for users .
In addition, the Road Safety Study was undertaken for the preparation of the project, it was found that the accident was not high in proportion to the existing traffic volume, but the majority of accidents occurred in scope and collisions, as well as violation of the rules by speeding, and driving distraction was the most frequent contributing factor.
According to the above, it was considered desirable to increase the capacity of the branch exit of the motorway, direction Madrid - Round South that there are no lines or ranges of vehicles on the trunk highway. And also to facilitate the incorporation into Round South dual carriageway from building a direct branch in which there is no need to carry out the uncomfortable current rotation to reduce collisions at the entrance to the highway.
Description of Works
The works include the construction of a roundabout 70 m in diameter at the intersection currently exists under the highway and the road to Santa Catalina, which will improve the flow and safety on the roads that access the same.
This roundabout will have a central ring formed by three lanes of 4 m wide and two shoulders of 1 m and has six Lighting age of 10 meters.
In it converge the new direct branches described above for entry and exit to the highway, which will replace the "links" current, and produce a significant improvement in safety, comfort and convenience during the final link.
Moreover, the entire area of operation includes the renovation of the existing pavement by an extended micro asphalt layer of 3 cm.
thick, and in areas of extension of the platform, there will be a new firm whose section will consist of selected soil 50 cm, 25 cm and 25 cm artificial gravel hot agglomerate divided into three layers.
To build the new branches and trailing the roundabout is necessary to build two separate walls of reinforced concrete of variable height, whose foundation requires the improvement of existing ground conditions by the procedure known as vibro replacement.
This procedure, used in the areas very sensitive to humidity changes (that is the case of existing soil Link Santa Catalina), is to replace part of the natural ground by a stone columns which expel excess water , and let the ground dry quickly, thus allowing the same foundation of the walls without them going down slowly over time to be diminishing moisture over the months.
Street lighting also improved significantly, relocating existing lighting columns and, in the current trunk highway, as in the legs and newly constructed roundabout.
This will be configured by staffs of 10 m in height staggered, and sodium vapor lamps High Pressure powers between 180 W and 250 W.
Finally, the central island of the roundabout is ornamented by different types of plantations.
Source: Delegación del Gobierno en Murcia
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