Air cargo forecasting for major airports in the world for 2014, about eight airports are study and accuracy forecasting matrix is developed, the study explore a fair results, based on the input of data, the forecast is developed, some of them are good and others are not, and depends on the analyses’ decision.
3. trail values (positive and negative value), the model will position itself accordingly as a clock about the origin( Rotational Issue ).
Accuracy of Forecasting Model - (Fair – Poor Forecasting Matrix)
One of the major challenges in the forecasting, is ACCURACY, how far we can except the results, is it reliable and practical or it might mislead us in undesirable direction, how we can set a reasonable targets, that can be achieved , is it good to forecast with a negative trends or not, and when we can to do that and how to adjust it. How we can interpret the trend analysis with seasonality model. All these issues have their own impact on the accuracy formula. So what is the best method to define and measure the accuracy of forecasting model.
In this sense we will address one of the new creative methodology, we will called it Fair – Poor Forecasting Matrix. It basically developed based on two main estimated mathematical parameters, Displacement and Directional factors which has a consequence impacts on R and Signal Tracking.
Forecasting Accuracy Setting:
For Fair forecasting, the model should fulfill these criteria
R2 ≥ 80 and Signal Tracking should be - 4 ≤ S. T. ≤ + 4 Then to developed
Fair – Poor Forecasting Matrix the following outcomes will be concluded
1- Fair Forecast – when R2 and Signal Tracking are in the bond.
2- Mislead – Displacement Issue. This case when R2 is in bond and Signal Tracking is out bond. we can adjusted signal tracking to be in bond when there is a room for R2 in the same analysis so that it can be consider as a fair forecast.
3- Unrelated – Directional Issue. This case when R2 is out of the bond and Signal Tracking in the bond. i.e the balance of accumulated error without any correlation
4- Poor Forecast – when both R2 and Signal Tracking are out of the bond ( Total Mess).
This matrix manipulate the four decision regions to develop the right and best picture of the accuracy of forecasting. And to enhance the process of decision making for major airports for air cargo movement / data analysis especially air cargo forecasting, that maps the overall forecasting accuracy of Major Airport in the world.
4. Air Cargo Forecasting - Major International Airports:
Airports in the study are Dubai (DXB) , Amsterdam (AMS), Heathrow (LHR), Frankfurt (FRA), Hong Kong ( HKG) , Paris ( CDG), Doha (DOH) and Macau (MFM)
Results:
Based on the actual figures ,The outcomes can be defined by a three levels i.e positively trend, flat, and negatively trend,
Only two airports shows a fair result as the mislead issue denied by max/min signal tracking analysis so Hong Kong(HKG) and Dubai (DXB) airports have fair forecasting, and most of the others airports are negatively trends, i.e mean, they are driven down if we are seeking for optimum forecasting as LHR, CDG, and FRA.
AMS airport has a flat trend (slope =zero ) and out of the bonds, while Doha airport have positive trend but undefined seasonality (poor model ).
Two airports are not reports in the accuracy forecasting matrix, CDG, and MFM. The reason that their values are too high with respect for others airports and we force their model to pass through the last actual reading so that it will reflects the most recent data.