Supporters of a proposed constitutional amendment that would change existing law on transportation funding, increasing “the amount of state revenue dedicated to road transportation,” said it would end years of diversions of funds and would dedicate vehicle-related taxes and fees to fixing Colorado’s roads. But opponents argue it would force painful budget choices by pulling money from other state priorities. The measure, Initiative 175 , cleared for signature gathering in December, would take effect Jan. 1, 2027, if approved by voters in November. It requires a list of transportation-related revenues be spent only on building and fixing roads and bridges, safety improvements, transportation planning and engineering, and Colorado State Patrol operations. About $1.395 billion of the roughly $2.09 billion in revenues affected already comes from funds dedicated to highways under the Highway Users Tax Fund. Vehicle sales and use taxes amounting to some $538.9 million would be statutorily dedicated to highway use.…