Subscribe By: Laura Schewel on December 14th, 2015 Print/Save as PDF [CASE STUDY] Fehr and Peers Case Studies Share: Alexia Klein How many years of historic data do you have? StreetLight Data Great question, Alexia! Our transportation Metrics are currently based on ~2 years of data stretching back to May 2014. We grow our library each month by processing additional data sets. Let us know if you have any additional questions - feel free to comment here or reach out directly to firstname.lastname@example.org.