     { type: 'skewed-railroads', value: 'black' }
   ]
 
-warning_trucks_rollover
+warning_trucks_rollover:
   category: 'warning'
   name: 'trucks rollover'
   elements: [

    { type: 'double-reverse-curve', value: 'black' }
  ]

warning_triple_2_traverse_curve
  category: 'warning'
  name: 'triple 2 traverse curve'
  elements: [

    { type: 'play-ground', value: 'black' }
  ]

warning_falling_rocks:
  category: 'warning'
  name: 'falling rocks'
  elements: [
