Traffic evidence supports a car wash sale when it connects the relevant road segment to the actual customer entrance. Record the source and year, verify legal and practical access, observe queue capacity and distinguish proposed projects from current conditions. Passing vehicles are not customers.
In this guide
Know what the traffic count measures
A road count describes vehicles passing a point over a defined period. It is not a list of unique drivers, households or likely wash customers. TxDOT offers daily, hourly, directional and historical resources, while Caltrans, FDOT and other transportation agencies provide road-specific datasets and tools.
Save the station identifier, road segment, count year, direction where available and whether the figure is observed or estimated. Confirm that the station relates to the driveway approach. A nearby freeway, divided highway or intersection may describe different movements from the traffic that can conveniently enter the site.
Reference for this section: TxDOT: traffic count maps and STARS II · Caltrans: Traffic Census Program · FDOT: traffic and planning applications
Check the documents and the actual driving route
Separate physical visibility from access rights. A sign can be visible to thousands of vehicles whose drivers cannot make a convenient turn. Review the approved driveway, median openings, easements and lease rights with the appropriate professional. FDOT's access-management resources illustrate why connection permits and traffic data are separate questions.
Visit the site from each meaningful approach direction. Record signals, one-way segments, U-turn routes and conflicts with neighboring uses. If customers rely on a neighboring driveway, obtain the written access arrangement. A practice tolerated by a neighbor is not necessarily a right that will continue after a sale.
Reference for this section: FDOT: access management
Observe the queue rather than quoting tunnel capacity
A machine's stated capacity does not establish the site's usable throughput. Pay-station speed, vehicle preparation, staffing, equipment downtime, stacking space and exit conflicts all matter. Observe the busiest actual operating periods and record date, conditions and approximate queue length.
Use observations to identify a question for the appropriate traffic or site professional, not to invent an engineering conclusion. Check whether the proposed buyer plan changes circulation, service time or site layout. Distinguish an existing permission from an improvement that needs a new review.
| Item | Record | Buyer question |
|---|---|---|
| Count | Agency, station, segment and year | Does this describe the actual approach? |
| Access | Permit, easement and turning route | Can the proposed owner retain this route? |
| Queue | Dated observations and approved site plan | What limits usable capacity? |
| Projects | Agency record, scope and current status | Is the effect temporary, permanent or unapproved? |
Keep development proposals separate from current demand
Planning maps and agency project pages can identify upcoming work. TxDOT explicitly cautions that its planning map is not an on-the-ground survey and that road features can change. Obtain the current record and review how the specific project relates to the property.
A housing application, approved retail project, building under construction and occupied development are different stages. Keep those labels and dates in the file. Do not multiply a proposed trip estimate by an invented wash-conversion rate to present future earnings as established fact.
Reference for this section: TxDOT: statewide planning map
Use the evidence in the sale conversation
Combine the access file with actual transactions and customer behavior, using aggregated data when confidentiality matters. If sales weakened during roadwork, show the full period and other changes that occurred at the same time. If a median change is unresolved, explain the current status and the steps being taken to obtain clarity.
The strongest location story is one a buyer can reproduce from the documents and a site visit. It supports a discussion of operating performance and risk without promising that a road count will convert into a particular price or volume of washes.
Sources and scope
Primary references checked September 5, 2026. They support the specific topics described below. Our checklists and examples are educational analysis, not transaction or professional opinions.
- TxDOT: traffic count maps and STARS II
Traffic counts and access to daily, hourly, directional and historical traffic information; not a measure of car wash customers.
- Caltrans: Traffic Census Program
State-highway traffic, ramp and peak-hour reports. City-street and driveway evidence require the relevant local source.
- FDOT: traffic and planning applications
Access to Florida Traffic Online and active construction resources. Use the dated station and road segment relevant to the property.
- FDOT: access management
State highway connection permits, access classification and median-opening resources; a traffic count does not grant driveway access.
- TxDOT: statewide planning map
Planning layers including projects and traffic; approximate mapping is not a survey or confirmation of property rights.
This guide provides general education. Your documents, jurisdiction and circumstances determine the advice you need. Figures labelled illustrative are examples, not reported transactions or market benchmarks.