Changes

* Unit of distance/volume/weight, currency - whatever Whatever you like, need or know. Note that you'll need to save the options to have the new units displayed in the next three settings:parameters.

* Avg fuel economy, fuel costs and avg carbon emission - only Only used for savings calculation, has no impact on optimization.

* Speed - the The percentage of the normal speed to use in planning. Use 100% for normal speed. If our routes are too fast, e.g. total travel time is too small, use a value below 100%. If our routes are too slow, use a value above 100%.