The evaluation of the crossing section between Dombås and Oppdal is carried out by evaluating the following passenger trains numbers: 47, 405, 413, 425, 417, 433, 441, 449, 457, 5707, 1735, 12345, 5709, 5719, 5735, 5737, 5911, 5913, 5921, 5923, 5931 and 5933 as the train passing from Dombås to Oppdal and trains 46, 406, 426, 414, 434, 442, 450, 418, 426, 5708, 5702, 12344, 1704, 5718, 5730, 5734, 5738, 5912, 5932 and 5934 as the train passing from Oppdal to Dombås over one year before and one year after the modification of the route. In this case, the evaluation is made from July 2012 to July 2014, as the new double track had come into operation from June 2013. But to evaluate the change in line capacity, the evaluation is made from 2008 to 2014 to generate the yearly comparisons.
4.3.3.1 Status of line capacity:
The measurement in the change in the volume of the train travelling through the Dombås and Oppdal stations was carried out 2008 to 2014. As the project begins from 2010 and was completed in June 2013. The duration before the project gives the mean of the 1310 trains passing through the route in a year whereas during the project period the volume was decreased by 2% to an average of 1280 trains per year during the crossing track construction period. The volume of the train was increased by 1% to average of 1300trains passing the route per year after the execution of the renewal railway line. So, the changes before the project to the after the project can be marked as overall decrease in the volume of the line by 1%.
53 Figure 36: Change in Line capacity in Vålåsjø Crossing
4.3.3.2 Change of punctuality
To measure the change in the punctuality, the two tools are used:
4.3.3.2.1.1 Punctuality measured from My train Punctuality application from Jernbaneverket.
To evaluate the punctuality from this tool, the punctuality between Dombås and Oppdal was measured. The train passing from Dombås to Oppdal gives the punctuality at departure in Dombås, whereas the trains passing from Oppdal to Dombås gives the punctuality of departure at Oppdal station. The analysis was carried out between July 2012 to July 2014 as the new crossing between Dombås and Oppdal was introduced from June 2013.
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Departure punctuality at Dombås (DOM) Station:
From the above experiment, it has been noted that, the punctuality at Dombåas Station was almost the same before and after the execution of the new Valåsjø crossings.
Departure punctuality at Oppdal (OPD) Station:
55 In the above observation, it was observed that the departure punctuality at Oppdal before the crossing was 76.4% and after the crossing the punctuality raised to 81.9%. So the overall increase in the punctuality was 5.4%.
Evaluation of punctuality from Precision tool
To measure the effect on punctuality due to new valåsjå crossing, the punctuality in Dombås and Oppdal was observed. The trains passing from Dombås to Oppdal with the odd numbers are observed to get the departure punctuality in the Dombås Station, whereas the trains with the even numbers are the trains passing from Oppdal to Dombås are used to measure the departure punctuality at the Oppdal Station. The observation is done one year before and one year after the execution of the project.
The departure punctuality at Dombås (DOM) Station:
The trains with the following trains’ numbers were observed from 2012 to 2014: 47, 405, 413, 425, 417, 433, 441, 449, 457, 5707, 1735, 12345, 5709, 5719, 5735, 5737, 5911, 5913, 5921, 5923, 5931 and 5933. In the observation it was calculated as the departure punctuality before the Vålåsjø Crossing was 70%-75%, whereas the punctuality after the new crossing was obtained to be 50%-55%. It means the punctuality of the Dombås station on the departure was
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reduced by 18% if we take the mean on above changes. The punctuality graph over the time period in Dombås Station was observed as:
Figure 37: Departure Punctuality at Dombås Station- Våaåsjå Crossing
The departure Punctuality at Oppdal (OPD) Station:
The trains with the following passenger trains numbers were observed that passed from Oppdal to Dombås between 2012 to 2014. The following train numbers were observed: 46, 406, 426, 414, 434, 442, 450, 418, 426, 5708, 5702, 12344, 1704, 5718,5730,5734, 5738, 5912,5932 and 5934. In the observation it was calculated the departure punctuality of the trains in the Oppdal station. It was observed that before the new crossing the punctuality at Dombås was 75%-80%, whereas the punctuality decreased to 70%-75% after the new Vålåsjø Crossings, where the average decrease is assumed to be by 7% The punctuality diagram for the time periods over the station is shown as:
57 The punctuality results from the Precision tool is taken into the further evaluation as the results being relatively more precise.
4.3.3.3 Travel Time and Standard Deviation
To measure the travel time and the standard deviation, the train number 406 was taken as the observed train. The observation time was one year before and one year after the execution of the new crossing track between Oppdal and Dombås Station. The consideration was made for the individual trains, the increasing number of trains when plotted gave the line format. It was assumed that all the trains passing through the route have similar nature of travel time and Standard Deviation.
Before the new Vålåsjø Crossing
From the evaluation of the travel time and standard deviation from the process control chart before one year of the execution of the project, it was observed that the travel time from Oppdal to Dombås was 1 hour 6 minutes and 43 seconds and the standard deviation was 9 minutes and 24 seconds. The detailed process chart is shown as:
Figure 39: Travel Time and Standard Deviation before new Vålåsjø Crossing between 2012-2013
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After new Vålåsjø crossing
When the observation of the travel time between oppdal and Dombås after one year of the execution of new crossing, it was observed that the travel time was 1 hour 9 minutes and 25 seconds, whereas the standard deviation was calculated as 8 minutes and 11 seconds. The detailed process chart is shown as:
Figure 40: Travel Time and Atandaed Deviation after new Vålåsjø crossing between 2013-2014
So, it can be observed that the travel time from Oppdal to Dombås after the new vålåsjø crossing has been increased by 2 minutes and 48 seconds whereas the standard deviation is decreased by 1 minute 13 seconds.