A modularly configurable paving operations system includes a modular framework of frame inserts, the width of the system extendible or reducible by the addition or removal of additional frame inserts. An end structure at either end of the modular framework has a front leg and a rear leg with a steerable crawler connected to each leg. Individual frame inserts may include a rail system along which end structures, accessories, or components may laterally slide. A control system can rotate one or more steerable crawlers via a steering assembly to drive, steer, or reconfigure the system. The control system may also include a tining control system, a grade control system, a spray control system, sensors and sensor arrays, and a user interface. The system may accommodate one or more accessories through an undercarriage mounted to the modular framework, which may further include a hydraulic height adjuster.