gistfile1.txt

const filterCurblrData = (data:CurbFeatureCollection, day:string, time:string, filterType:string):FeatureCollection<LineString> => {

  var fitleredData = featureCollection<LineString>([]);
  
  for(var curbFeature of data.features) {
      var filteredFeature = feature<LineString>(curbFeature.geometry);
      filteredFeature.properties = {};

      if(!filterTimeAndDay(curbFeature, day, time))
                  continue;

      for(var regulation of curbFeature.properties.regulations) {
          if(regulation.priority) {

              var baseOffset =  6 ;
              if(curbFeature.properties.location.sideOfStreet === 'left')
                  baseOffset = -6;
  
              filteredFeature.properties['offset'] = scaledOffet(baseOffset * (regulation.priority - 1));
  
              if(filterType === "time") {
                  if(regulation.rule.activity === "parking" && regulation.rule.maxStay) {
                      var maxStay = regulation.rule.maxStay + "";
                      if(MAXSTAY_COLOR_MAP[maxStay]) {
                          filteredFeature.properties['color'] = MAXSTAY_COLOR_MAP[maxStay]
                          fitleredData.features.push(filteredFeature);
                      }
                  }
              }
              else  {
                  filteredFeature.properties['color'] = ACTIVITY_COLOR_MAP[regulation.rule.activity];
                  fitleredData.features.push(filteredFeature);
              }
          }  
      }
  }

  return fitleredData;
};