Here are datasets gathered by IMR...

Travelling Salesman Problem in a Polygonal World

SSM-VPR

Generalized Travelling Salesman Problem with arcs

Multiple Travelling Deliveryman Problem/Multiple Graph Search Problem

Binpicking HDR dataset

Asus Xtion, Hokuyo laser rangefinder with DNSS-based ground truth dataset for multi-vehicle SLAM gathered at VUT Brno in May 2014.