String for $DetectHitObject = "";

All_Objects //All Objects
All_Tires //Small+Big Tires
All_Cones //All Type of Cones incl Pointers
All_Markers //All Types of Markers
All_DistMarkers //Distance Markers
All_Post//All Posts (Green/Orange/Red/White)
All_Armco //(Short/Medium/Long Railing)
All_Concrete // (All Concrete AutoX Objects)
Concrete_Slabs
Concrete_Ramps
Concrete_Walls
Concrete_Pillars
Concrete_SlabWalls
Concrete_RampWalls
Concrete_ShortSlabWalls
Concrete_Wedges
Green_Post
Orange_Post
Red_Post
White_Post
All_Barriers // All Types of Barriers
Long_Barrier
Red_Barrier
White_Barrier
Banners
SpeedBumps
Bale
Railing
KeepSigns
SpeedSigns
TrackSide_Objects

NOTE: You can combine objects, Example: "All_Tires+Red_Post+etc"