Our lab members, Hazal Akova and Selin Hülagü attented to the 24th Euro Working Group on Transportation Meeting (EWGT 2021) which is orginazed by Universidade de Averio as virtual event between 8th and 10th of September. Within the program of EWGT2021, Hazal Akova has presented the paper titled "Static bike repositioning problem with heterogeneous distribution characteristics in bike sharing systems" she co-authored, in which the Static Bike sharing Rebalancing Problem (SBRP) with multiple capacitated vehicles for redistribution of bicycles is addressed in order to proposed a sustainable bike sharing system that meets within-day demand dynamics in a metropolitan city. Within her presentation, Hazal also discussed the results from solutions to the SBRP through a real case network.