Double Routes are Permitted for 3 players.
You starting with 2 four point tokens, 6 two points, and 10 one point tokens). You pay the amount on board to the ‘bank’, or to the first player if claiming second double route.
If you have insufficient tokens, you must take a loan, which invalidates your future bonus and loses you 5 points for each loan card.
For a three player game, the bonuses are 55, 35, 0, for four is 55,35,20,0.