Complex sentence: Facilities at the station had been downgraded in the years prior to closure and as the station was initially only temporarily closed, the remaining station furniture, including the lampposts, signage and drivers mirrors, was left in situ.
Split into simpler sentences: Facilities at the station had been downgraded in the years prior to closure. At first the station was temporarily closed, so the remaining station furniture, including the lampposts, signage and drivers mirrors, was left in situ.