UDS1

Qualifying Scoring:

Zone / Clipping Scoring

1. Overview
   To score the precision in which a vehicle fills a clipping zone, without bias of its chassis size. 
   To achieve this, there are new zone scoring types (scoring / penalty) zone position types, and vehicle "lines" aka polygons which show the track area in which the vehicle has occupied.
    

• Definitions
  Body Drift Line:
  This is the polygon drawn on the track surface in which the body of the vehicle has occupied on the track. Essentially a "box" drawn from the front bumper, to rear bumper, and along the side of the vehicle. 
  This polygon's size and shape is dependant on the vehicle angle.
  Big body vehicles : Jzx, Mustang, etc produce a bigger drift line when on angle, then smaller body vehicles (Ae86, Zn8, s13 etc).
  A tolerance of 200mm is added to the perimeter of the body line.
  
  Wheelbase Drift Line:
  This is the polygon drawn in which the wheelbase of the vehicle has occupied. Wheelbase being the "box" from the front wheels, to the rear wheels, taking into consideration track width, tire size etc.
  Wheelbase lines are given a tolerance of 200mm.
  
   
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  Clipping Zone + Penalty sub-zone "No-Go Zone (NGZ)":
  Clipping zones are broken into 2 parts. A "Scoring" part, and a "Penalty" part. Every Clipping zone will have both.
  NGZ are placed on outer edge of the clipping zone, dependant on the direction of the zone/ movement of the driving line.
  The NGZ is a mirror of the Clipping zone in terms of size, and position - next to the scoring zone.
  NGZ can be/ should VIRTUAL.(ie- not painted)
  Tracks most likely will be unable to draw these zones onto the track surface. Drivers / Judges should be aware of the NGZ. 
  
  The driving objective is to fill the scoring zone (with either the Body Drift Line or Wheelbase Drift Line) without entering the "No-Go" zone. 
  
  
  The PERCENTAGE (%) in which the scoring zone is filled, is the score for this zone. 
  If the vehicle enters the NGZ, the PERCENTAGE in which this zone is filled, is a deduction. 
  
  This is a 1:1 proportionate decrease in scoring if a driver doesn't fill the zone completely or overshoots the zone.
  
  UDS1's focus is to reward drivers whom fill the zone completely, without overshooting the zone. IE rewarding precision positioning of the vehicle. 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  Zone position Types:
  There are 4 position types of zones, and they are scored differently depending on their type.

  
  1- Outer Zone. 
  These are zones that are on the outside edge of the track surface, where the REAR of the vehicle is required to interact with. This zone is not impeded with other objects, such as walls or tire stacks etc. 
  
  
  2- Outer Zone WITH object.
  Same as above, however a physical object exits, which would prohibit the vehicle from freely overshooting the zone -such as walls or tire stacks etc.
  
  3-Inner Zone
  These are zone that are on the outside edge of the track surface, where the FRONT of the vehicle is required to interact with. This zone is not impeded with other objects, such as walls or tire stacks etc. 
  
  4-Inner Zone WITH object.

  Same as above, however a physical object exists which would prohibit the vehicle from freely overshooting the zone -such as walls or tire stacks etc.
  
  
   

1. Methodology
   Zones are filled with the vehicles WHEELBASE DRIFT LINE. The amount that this polygon interacts / covers the scoring zone will increase the score to a maximum of 100%. 
   If the Wheelbase Drift Line exceeds the zone, and enters the NGZ, the amount the NGZ is filled, is deducted from the score.
   Effectively, the driver needs to place their wheels (front or rear depending on the zone)  as deeply into the zone to achieve maximum points, without entering the NGZ.
   
   Zones WITH objects are filled with the vehicles BODY DRIFT LINE.  The amount that this polygon interacts / covers the scoring zone will increase the score to a maximum of 100%. If the BODY Drift Line exceeds the zone, and enters the NGZ, the amount the NGZ is filled is deducted from the score.
   Effectively, the driver needs to place their bumpers (front or rear depending on the zone)  as deeply into the zone to achieve maximum points.
   
   Why?
   Clipping Zones with objects - such as walls, traditionally give a bias to vehicles with a short rear over-hang. Large body vehicles are physically unable to place wheels deep into zones where there are objects.
   
   Clipping Zones where there are no objects, which are some times scored with the vehicles body filling the zone, give a bias to large body vehicles, as they do not need to get wheels as deep into the zone to fill it. Having the wheelbase to fill the zone removes that bias. 
   
    

2. Examples
   
   Outer zone : Clipping Zone partially filled (34%) (Wheelbase Drift Line)
   Vehicle NOT deep enough into zone.
   Score:  34% 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   Outer zone WITH Object :Clipping zone fully filled (100%), NGZ partially filled (42%)  (Body Drift Line)
   Wall (2x) Objects within Zone. Vehicle overshoots Clipping Zone and enters NGZ mid corner, incurring a 42% penalty.
   Score:  :100% - 42%     = 58%
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   Outer zone : Clipping Zone mostly filled (98%)
   (Wheelbase Drift Line)Vehicle deep  into zone.
   Score:  98% 
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
    

3. Out of scope items