Aiming　at　the　impact　of　freeway　slope　photovoltaic　construction　on　driving　safety,　a　driving　simulator　experiment　was　carried　out.　By　designing　eight　slope　photovoltaic　schemes　under　varying　sunlight　conditions　and　road　alignment　parameters,　we　recruited　35　drivers　to　collect　detailed　driving　behavior　data.　Seven　driving　indicators　were　selected　to　develop　an　evaluation　index　system.　Statistical　analysis　was　conducted　to　compare　driver　behavioral　performance　under　eight　slope　photovoltaic　schemes.　The　findings　reveal　that　the　installation　of　photovoltaic　panels　on　freeway　slopes　significantly　affects　driving　behavior.　Specifically,　the　driver＇s　speed　and　degree　of　steering　wheel　angle　decreased　significantly,　while　acceleration　increased　significantly　on　straight　alignment.　The　standard　deviation　of　driver　speed,　acceleration　and　standard　deviation　of　acceleration　significantly　reduced,　while　the　degree　of　steering　wheel　angle　and　the　depth　of　the　gas　pedal　significantly　increased　when　photovoltaic　panels　were　laid　on　the　side　slopes　on　curved　road　sections.　In　addition,　different　curve　radius,　the　impact　of　photovoltaic　panels　on　acceleration　and　degree　of　steering　wheel　turning　angle　were　different.　There　is　a　significant　effect　of　installing　side　slope　photovoltaic　panels　on　driver　acceleration,　standard　deviation　of　acceleration　and　degree　of　steering　wheel　turning　angle　in　curved　sections　with　different　curve　radius.　Under　different　sunlight　conditions,　the　impact　of　photovoltaic　panels　on　the　degree　of　steering　wheel　angle　were　also　different.　The　actual　setup　needs　to　take　into　account　the　impact　of　different　road　alignments　on　drivers.　The　is　study　provided　theoretical　support　for　the　installation　of　freeway　slope　photovoltaic　panels.　©　2024　International　Solar　Energy　Society