The Transportation/Traffic Engineering service goes hand-in-hand with Civil/Site Engineering and Highways/Streets services. It also goes beyond them. This service at Sands Engineering, LLC includes turning movement count, traffic counts, trip generation, stop sign or signal warrants, and lane addition evaluation. For residential or commercial developers, the lane addition evaluation is very important. It can determine if you need either a right or left turn lane from the main street into the development. The determination for this is conducted using ODOT standard design criteria. Another aspect of the Transportation/Traffic Engineering is site distance evaluation. The site distance is again calculated using ODOT criteria.