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ST

SOUTHWEST TRAFFIC SIGNAL SERVICE INC

DOT 2654686ActiveIntrastate Non-HazmatEL CAJON, CA

COMPANY

Authority since
—
MCS-150
2025-04-03 · 120,000 mi (2024)
Fleet
9 units · 7 trailers · 30 drivers
Annual mileage (VMT)
120,000 mi (2024)
Owner origin
Anglosphere
Origin candidates
English 80%

ADDRESS

Physical
1855 JOHN TOWERS AVE
EL CAJON, CA 92020
Mailing
PO BOX 1297
EL CAJON, CA 92022

CONTACT

Phone
6194423343
Email
rclark@southwestsignal.com

OFFICERS

Primary Officer
RYAN T CLARK
Title
PRESIDENT & GENERAL MANAGER
Origin
Anglosphere

OPERATION & CARGO

Operation classification
Private Property
Specialty
Construction & Building Materials
Cargo types
4
General FreightBuilding MaterialsConstructionOther
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
—
Active authority
INSURANCE
None
No coverage on file
RISK GRADE
Elevated Risk
3 risk factors · 1 strengths
OOS RATE
26.7%
4 / 15 inspections

Fleet vs Reality

last 12 months · power-unit VINs from roadside inspections
Checking local VIN index…

Elevated Risk

3 risk factors · 1 strengths · 4 data points

SAFETY PERFORMANCE

Crash Record
1 crashes · 0 fatal · 0 with injuries · 1 tow-away
Clean Inspection Rate
73% — 11 clean of 15 inspections
Out-of-Service Rate
26.7% — driver OOS 0, vehicle OOS 4

COMPLIANCE & AUTHORITY

Operating Authority
Active operating authority on file
Authority Events
No authority history events
MCS-150 Filing
Last filed 2025-04-03

INSURANCE

Active Coverage
No insurance policies on file

SUMMARY

High OOS rate 30% (last 24 mo)
3.2 violations per inspection
No active insurance on file
No crashes in the last 24 months

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