The degree of collaboration between state departments of transportation (DOTs) and metropolitan planning organzations (MPOs) on goals and performance targets for management of transportation assets varies. Collaboration may also involve investment decisions. The TRB National Cooperative Highway Research Program's NCHRP Synthesis 577: Collaborative Practices for Performance-Based Asset Management Between State DOTs and MPOs documents DOT practices for collaborating with MPOs relative to target setting, investment decisions, and performance monitoring of pavement and bridge assets.