Traffic Engineering


The Traffic Engineering Section of Traffic Operations, is responsible for collection of all types of data for traffic analysis. Various types of data is collected through field studies that include turning movement counts, pedestrian counts, speed & volume with the use of computerized traffic counters and road tubes placed across roadway. Gap studies, stop delay, vehicular classification counts, crash diagrams are all used to determine high crash/high speed areas. The collected data is used to determine transportation needs in making decisions regarding traffic signal warrants, traffic signal design, roadway design, appropriate speed limits and the placing of various regulations such as turning movement restrictions or restrictions on truck traffic, stop signs, signal timings and placement of traffic calming devices, etc. Also to insure that traffic controls including signs and pavement markings are maintained for clear view for the motorist/pedestrian safety.

The City of Lakeland has a Traffic Safety Team made up of traffic engineers, traffic technicians, Lakeland Police Department, Florida Department of Transportation and Community Development to over see traffic safety/pedestrian concerns. The purpose of the team is to identify traffic related concerns within the City. Traffic Engineering collects and provides analysis/data requested by the safety team. Jointly the team arrives at a solution for problem locations. 


Types of Traffic Studies


Turning Movement Count

Turning Movement CountsThis requires an individual to be at a location for a given length of time and record the number of vehicles that go left, right, and through. This information is recorded for each leg of an intersection. At busy intersections it takes 2 individuals to do the study. The data collected is used to measure the capacity of an intersection, to establish what type of control device is needed (stop sign, signal, etc.) and determine the timing of the intersection's traffic signal.

 

Vehicle Speed, Volume & Classification

Determining Vehicle SpeedA machine count is used to determine the 85th percentile speed, total and peak hour volumes, and Determining Vehicle Speed classify (car, truck, bus, etc.) at a particular point on a roadway. This information is used to determine level-of-service of a roadway, identify speeding problems, and what types of vehicles are using the roadway.