What are the pros and cons of the current highway funding structure as related the taxes paid by motor carriers?

Below are the pros and cons of the current highway funding structure as related to taxes paid by motor carriers:

Cons:

1. There is solid restriction to fuel charges increase. 
2. The present government transportation financing structure depends essentially on tax collection of oil driven vehicles; this, nonetheless, is not reasonable in the long haul because of the real worry on environmental change. 
2. The clients of the current aberrant client charge framework which depends on tax assessment of the devoured fuel are uninformed of the sum they pay as fuel charges. 

Pros
1. Engine fuel charges yield heaps of income with less effect on the fuel costs. 
2. The financing structure of expressways has added to the monetary development and thriving of the na±on, this will con±nue into the future if the assets are well spent. 
3. Expanded engine fuel charges will urge the clients to moderate the earth and lessen clog.