The chart above (click to zoom) shows scoring for Cruiser class cars arriving at Adelaide, in a modified version of my “tuning fork” style. The score is calculated as a product S = D × H × (1 / E) × 0.99l. The chart shows the components of the score on a logarithmic scale, so that multiplying and dividing score components corresponds to adding and subtracting bars. For each team, there are 6 bars (the 6th bar, in a darker colour, is the total score):
- The distance travelled in km (D). Teams completing the entire course score ahead of others.
- The weighted average number of humans (H) in the car (so that the product D×H is the number of person-kilometres). A small tick mark above the bar shows the number of seats in the car, which is the maximum possible value of H for that team.
- The nominal external energy usage (E) in kWh (initial battery capacity, plus metered charging along the way). This bar is negative, because we are dividing by E.
- The fourth place, labelled P, is reserved for the incorporation of practicality in the final score.
- The lateness factor (0.99l), where l is the number of minutes of late arrival, plus the number of demerit points.
- The total score (S). The score itself is shown over the bar. It can be seen by inspection that this bar is the sum of the others.
Well done, Eindhoven!
Update 1: I note that Sunswift’s car has been modified to have 2 seats, rather than 4.
Update 2: See here for an updated chart.