Jüssi was the main author of Sustainable Transport Report for Estonian government (2010) and a member of national expert groups for  transport, spatial planning and low-carbon economy strategies. She was been also active in launching cycling initiative Eesti Rattarikkaks! and a network of urban mobility planning professionals in Estonia.

In 2012-2014 she worked with transport and mobility scenarios and energy saving assessment for Estonian National Energy Policy scenarios 2030+.