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["Please answer the following questions "]
[null,"Definition for Need of Vegetation Control"]
[null,"The need for carrying out vegetation control measures in railway tracks is based on the historical grown view, that vegetation produces negative impacts on the track (i.e. labor safety, track stability, lifespan of track etc.). "]
[null,"Do you carry out investigations concerning the question \"Need of Vegetation Control “? "]
["If YES, then please answer following questions: "]
[1,"Do you expect an impact on track by vegetation?   *(Multiple selection possible- in the same cell)"]
[null,"If other, please specify"]
[2,"Do you expect a reduction in track functionality/ballast bed by vegetation?  \n* (Multiple selections possible- in the same cell) "]
[null,"If other, please specify"]
[3,"Which indicators are important in answering these questions?\n* (Multiple selections possible- in the same cell) "]
[null,"If other, please specify"]
[null,"Do you have any any references/links with regards to your studies? Please share more information."]

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["QY/N: Carry out investigations concerning the question „Need of Weed Control “? ","Q1: Impact on track by vegetation","Q2: Impact of vegetation on track functionality/ ballast bed","Q3: Indicator"]
["Yes","Wear on rail surface","Drainage problems","Vegetation cover"]
["No","Visual impairments on low signals ","Faster degradation of railway components","Type of vegetation"]
["No, but we are planning such an investigation","Track misalignment","Track misalignment due to unstable/ weaken subsoil","Percentage of fine fraction in the ballast bed"]
[null,"Reduction in stability of the railway superstructure (ballast bed)","More frequent maintenance works of the railway superstructure \n(i.e. tamping machine)","Measurements of track alignment "]
[null,"Decreasing occupational safety","Other","Other"]
[null,"Other"]