When an agency is initially evaluating several potential locations and countermeasures as part of their
proactive safety analysis or Caltrans call‐for‐projects, they should consider first using rough ‘ballpark’
cost estimates. Ballpark cost estimates can allow the practitioner to quickly establish B/C ratios for all of
their potential projects and identify the projects with high cost effectiveness and with a reasonable
chance of receiving federal funding in a Caltrans call‐for‐projects.