'SciPy' has a few different meanings. It is a particular Python package, which brings together fast, efficient implementations of many key functions and algorithms for scientific computation. It's also the label for the broader scientific Python stack, the set of libraries and tools that make Python an increasingly popular language for science and research.
DOT staff want their data to be used and reused, and not just specifically for legislated funding apportionment. DOT encourages use of data by a variety of means including "hackathons" to promote interest among analytically oriented innovators and entrepreneurs.