SIGNALERINGSSTRÄCKA VID KORSNING MELLAN LIDINGÖBANAN OCH SÖDRA KUNGSVÄGEN : KAN VÄNTETIDEN FÖR BILTRAFIK FÖRKORTAS?

Sammanfattning: Since the refitment of Lidingöbanan which was completed in 2015, the barrier time for car traffic at level crossings have been protracted. In Skärsätra, where Lidingöbanan crosses Södra Kungsvägen and traffic flows are high, this is a particularly big problem. Therefore, it is investigated in this report whether it is possible to shorten the signaling distance for the road protection at the intersection and what measures are required to accomplish this. A literature study has been made, including the history of Lidingöbanan, what a road protection is, what accident hazard exist at level crossings and what laws and regulations apply to road protection. It is shown that the main reason behind the protracted blocking time is the fact that the AGA station is located in the signaling range, which causes the blocking time to vary vigorously and the waiting time tends to be drawn-out.Further along in the report, the pre ringing time and control distance is calculated in order to be able to determine a signaling distance and an aproximate block time for car traffic. One result was shown to be sufficiently short for the signaling range activation point to be after AGA and the blocking time becomes more constant and shorter than in the current situation. The results are analyzed as to what measures have been required to shorten the signaling distance and it is discussed how well the regulations have been complied in the calculations. Lastly, the conclusion is drawn that it is possible to shorten the signaling distance from 656 meters to 577 meters, with this reduction the AGA station is no longer included in the signaling range. The blocking time has decreased from an average of 90 seconds to 61 seconds. It can be noted that the waiting time has diminished thanks to the shortened signaling distance and the fact that the AGA station no longer is located within the signaling range.