• Monorails and HSR have been fixed to contribute to and be affected by traffic congestion, just like all other vehicles.
• The speed of the el rail trains has been adjusted slightly downward, to be equivalent to the subway speed.
• The display of the monthly subway cost in the menu has been fixed.
• The monthly subway tile cost has been increased by an additional 50%, to more accurately simulate the real-world cost of subways.  It is now §1.80 per tile per month, or six times the value in other traffic simulators.

^{Franklin County --- Three Rivers Region
Signature is expierencing technical difficulties.}

• A Bus Usage Multiplier, which would allow the player to control the relative usage of buses in the traffic simulator.  The initial setting would be 1, which would reflect the current usage level, and this value would be calibrated in tenths, with a range of 0.1 to 9.9.  (Zero doesn't actually work as expected if valid paths are available.)
• A Highway Bus Lanes checkbox, which would simulate the existence of bus lanes on highways, although of course the automata would not reflect this.  But this last fact would not necessarily be obvious; you could also call it a carpool lane, to explain the presence of cars, and some buses would be traveling in other lanes anyway.  This could be combined with the Bus Usage Multiplier to produce a multiplicative effect.
• Allowing the players to tweak the monthly cost of all the networks.  Although the purchase cost for network tiles is accessible, it's often tied up in exemplars with properties that are changed by other mods, so it's risky to modify those exemplars.  But the monthly costs exist completely within the traffic simulator.  And realistically, cities don't have bundles of cash sitting around for big construction projects anyway.  So the monthly costs can be considered payments on interest-only bonds that the cities issue to build the networks.  These costs can be made more or less expensive to suit the player's preference, and each network can be tweaked individually.
• Similarly, the players could adjust the fares for each travel type any way they wanted.  As an example, you could make your ferries traveling riverboat casinos, and charge the Sims §100 just to board.  That would solve your financial problems fast.  This wouldn't deter the Sims from taking ferries; they just don't know the value of money.
• The intersection effect could be changed, effectively making more or fewer stoplights and stop signs in cities, making traffic flow smoother, or making a complete mess of it.
• The commute time graph scaling could be changed by the player.  This is useful because the proper scaling depends on the type of region that the player builds; specifically, it is dependent on the number of inter-city commuters.
• Finally, the amount of air pollution emitted by vehicles could be tweaked by any amount in either direction.