TDS Traffic Counts TDS Traffic Counts

Service

Speed studies

A speed study measures the speed of free-flowing vehicles at a point or along a segment, reported as percentiles, pace and a distribution by speed bin. It supports posted speed limit reviews and neighbourhood speeding concerns.

Speeds are collected with pneumatic road tubes or by vision-based, non-intrusive methods, and are reviewed independently before release.

Two pneumatic road tubes fastened across a residential street in Tulsa, Oklahoma, with a parked vehicle and houses beyond
Pneumatic road tubes across a two-lane residential street in Tulsa, Oklahoma. The tubes record volume and speed by direction over the count period.

Deliverables

Outputs85th-percentile and mean speed, 10-mph pace, distribution by bin, by direction and time period
DurationSpot samples, or 24-hour and multi-day tube studies
FormatsExcel workbook, PDF summary; raw files retained
Recent scaleCitywide on-call speed and volume program, Tulsa, 35–40 locations per task order (2023–2026)

When this study is used

Speed limit setting and review, traffic-calming requests on residential streets, school-zone studies, before-and-after evaluation, and corridor safety studies.

Related work

Representative projects

180residential-street locations

Citywide Speed & Volume (On-Call)

Tulsa, OK · 2023–2026

Over six task orders since 2023 (11 to 69 per order), 7-day volume and speed by direction.

Each order completed in 2-3 weeks

7intersections

NE 23rd Street Multimodal Counts

Oklahoma City, OK · 2024

With 24-hour turning movement counts and crosswalk pedestrian and bicycle counts, plus speed and bidirectional volume at 3 segments.

Delivered in two phases, the second on an expedited schedule

Need counts for an upcoming study?

Send us your locations and collection requirements and TDS Traffic will return a written scope and price. Or email support@tdstraffic.com.

Request a quote