"The whole New Zealand Upgrade programme seems to be in chaos," Brown said.
"Not only are there significant delays in their projects but they can't decide how to reallocate money from their cancelled cycle bridge, which was cancelled a year ago," he said.
He said the Government had an "absolute inability to make decisions and get things done"
A Government spokesman said: "Ministers are currently considering advice on the reallocation of funds from the Northern Pathway. Decisions are expected to be confirmed in the coming month."
Other upgrade projects have been beset by delays and cost overruns. The Herald revealed in August that Waka Kotahi-NZ Transport Agency flagged concerns of cost overruns on many of the existing $8.7 billion worth of transport projects.
Those projects have built-in contingency funds to absorb cost blowouts, but there are fears that inflation in the construction and infrastructure sectors is so great that these contingency funds may be exhausted.
Green Party transport spokeswoman Julie Anne Genter said the Government should reallocate all of the funds to other active transport projects like walking and cycling improvements.
"It is the minimum they could do," Genter said.
"The New Zealand Upgrade is a significant investment in transport. If the Northern Pathway is entirely reallocated to highway projects, which have been blowing out in cost, that will influence how carbon-unfriendly the package is," she said.
Brown said "ideology" had caused Labour to fund the cycle bridge.
He said he wanted the Eastern busway funding signed off so work could begin on the project.
Brown said he would also like money directed at projects in South Auckland.
"There are significant delays and inaction happening in the Mill Road corridor as well. That uncertainty is leading to significant challenges in South Auckland," Brown said.