http://www.nbcsandiego.com/news/local/Caltrans-Addresses-Spike-in-Wrong-Way-Crashes-367288861.html
QuoteNow, Caltrans is introducing a pilot program to improve warning signs on 63 off-ramps on the Interstate 15 between California State Route 78 and Interstate 8. The plan includes bigger "wrong-way" signs, flashing lights and sensors that alert California Highway Patrol when someone enters the freeway the wrong way.
Each off-ramp along I-15, stretching through much of the county, is ranked as a Level 1, Level 2 or Level 3 danger. The amount of signage and reflectors depends on the level. Funding for the project comes from the state, and the signs are being installed at the end of the month. Cartagena said if successful, the program may be expanded.
Technical information on the pilot program is available at these two links:
https://assets.documentcloud.org/documents/2702125/TAPCO-System-Options.pdf
http://dot.ca.gov/docs/external.pdf (December 2015 report) - of note is Appendix E, which offers benchmarking comparisons from various state DOTs (or equivalents) regarding wrong way driving, including questions about how lighting, interchange design, signage, etc. may affect incidence rates for wrong way driving
They need to fix the diagram as the ONE WAY sign is pointing the wrong way.
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