Complex sentence: Instead of a rescue excavation, the construction works were suspended for nine months and the settlement remains were systematically archaeologically recorded; the results of the excavations are permanently shown in the pavillon to the lakeshore.
Split into simpler sentences: Instead of a rescue excavation, the construction works were suspended for nine months and the settlement remains were systematically archaeologically recorded. The results of the excavations are permanently shown in the pavilion next to the lakeshore.