1. От грохота до шёпота

    • How to "read" the results of the project

      To see and compare the different participants in the project data, you need to go to the content tab "Results".

      The first way to display the results in this project - a card onto which the layers 5, 5 kinds of meaning of the data. In order to move from one layer to another, you need to click on the figure to the desired layer number in the lower right corner of the map.

      The first layer - and a first type of data - the data is received from the sensor. It displays the results (noise level in dB) that were sent to participants directly from the sensors, so if you enter the value of the noise manually, your results in this layer can not be displayed. Different noise levels are marked on the map markers-circles ranging in color from green (low noise) to red (high noise level).

      If you click on a mark on the map in a separate window displays the data of the participants who conducted the study in a place to which you selected marker on the map. (This may be one location, and a few, and the whole area - it all depends on the chosen scale. Scale of the map changes using the slider located on the map at right). To close this window, click on the X in the upper right corner or click on any empty space on the map.

      The second layer of data on the map displays the maximum sound level - is the value that you entered in terms of the sensor manually. Different values ​​of the maximum noise level is appropriate marker-stars in a range of colors from blue (low noise) to yellow (high noise level).

      The third layer on the map - this is the list of noise sources. If you click the icon, white clouds, which appeared at each mark on the map in a separate window that displays a list of those sources, the noise level has been measured participants.

      Fourth layer - this is the type of noise source (transport, technical device, people, etc.). Correspond to different types of markers, triangles of different colors. Click the triangle to see a list of the types of noise sources which participants studied in this place.

      Finally, the fifth layer - photos noise sources. Click on the thumbnail photos to see it in full size.

      The next way to display the results of the project - it's graphics. Let us examine how to "read" data from the charts, the example of the first of them - it shows the dependence of the maximum noise level (in dB) of the type locality. All data of the participants are divided into four columns - four types of settlements (big city, small town, urban village, town / village). Each mark (diamond or circle) on the graph corresponds to a result of measurement noise (the one filling out the questionnaire). If you move the cursor to the point next to it will be the username, and - in brackets - they measured the sound level. At the same circles marked values ​​noise sources that subjective assessment by participants noise "loud" and diamonds - "quiet."

      With this chart, we can see how the difference in the level of noise sources in different types of settlements studied by the project participants. For example, we estimate the range of noise sources for certain types of settlements. Take, for example, urban village and find out what are the smallest and largest values ​​of the noise level in the appropriate column on the chart. Suppose we have found that these values ​​- 39 and 93 dB, ie currently in the townships participants managed to fix the noise in the range of 39 to 93 dB.

      This does not mean, of course, that the sources of the noise level below 39 dB and above 93 dB in these settlements can not be - just as long as those of the study participants did not record. It is important to understand that the more data we manage to collect from the study, the more accurate the results will reflect the actual range of noise levels in a particular type of settlement.

      Let's compare the results for two different types of communities: urban village and the village / village. Assume the noise range for the village / village - from 20 to 59 dB. This means that at this point in the townships found sources noisier than in the villages. But this does not mean that the village can not find the source of the noise level above 59 dB. If it turned out that the results of the village / village had collected less than townships, the accuracy of the estimate and the noise range in the first case will be lower.

      It is also interesting to find out, looking at the schedule, there is always a subjective evaluation of noise "quiet-loud" corresponds to reality. Can we find examples in the chart that the facility with a higher level of noise is subjectively assessed as "quiet", while quieter - as "loud"?

      In the same way, we can interpret the data of the second graph, which shows the dependence of the maximum noise level of the type of noise source. These are divided into five columns - by type of noise source. Looking at them, we can assess which sources are the noisiest: people or animals, or transport a variety of technical devices.

      The third graph shows the dependence of the maximum noise from the venue of the experiment. Analyzing the results as well as on the previous graphs, we can compare the noise levels in residential or public place, or in a recreation area in the industrial area.

      View graphs can be changed and customized. To do this, click on the word "Customize appearance of the graph" in the lower right corner. In the tab "Settings" function is available to you change variables, color and general type of graph. If you want to display on the chart only the most recent data or, on the contrary, only the old, use the tab "Filter by date". If you want to draw conclusions from data obtained from participants in any one locality or in several neighboring cities, use the tab "Filter by location". Scroll on the map the area of ​​interest, and the chart will display only those results that relate to this area.

      Machine translation
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