Viewed against GPMETRO's history of budget increases over the last decade, this $600K is a big increase. It will be interesting to see how it is explained (possible retreat of federal funding due to Orange Man Regime?) but it might have longer term implications if Portland has to shoulder more of the cost of GPMETRO service vs. other communities.
As to the Pension Obligation Bonds burning off, that money is not really available for tricks and treats. Portland's CIP has been woefully under budgeted for DECADES (partly due to the Pension Obligation gorilla on its back) and between regular inflation and the much higher costs in general of getting anything built today in the public sector, the new spending flexibility must be immediately dedicated to long deferred projects. Our schools for example are falling apart to the tune of $300 - $500MM of deferred investment. Then things like street paving and other infrastructure means that the money shouldn't be used for tax decreases until the backlog of capital improvements is substantially reduced.
Bonding is very efficient. Portland has worked hard to become a very good municipal credit buy and bonding helps stretch our purchasing ability. It would be absurd to waste our excellent credit rating by stupidly paying cash for stuff that we could do better through bonding.
ALSO, we need to create more capacity in-house in City Hall. Right now we lack enough quality project managers, designers and engineers to get things built. Unless we have the capacity to quickly design, bid and manage capital projects efficiently, everything Portland does will take longer and cost more money - starving other future projects of revenue. And quality control and contractor management is the best way to prove to the taxpayers that City Hall can carry out the promises it makes when projects get approved.