Cal-NExUS

Cal-NExUS, the California Numbered Exit Uniform System is the California Department of Transportation (Caltrans)'s program for numbering the exits of California's freeways. The program began in 2002. The system numbers exits on a mile-based system, where an exit is numbered based on how far it is the freeway's terminus, as opposed to a sequential numbering system, which numbers exits in sequential order, regardless of distance between exits.

The program is not well-funded, so exits are only being signed with numbers when signs need to be replaced. As the efficacy of an exit numbering system for navigational purposes depends on all exits being consistently numbered, the usefulness of the system while only some exits are numbered is marginal. The current deadline for completion of the project is November 2008.

As of 2004, of the 5,936 exits in California, 359 are in full compliance (6.0%) 786 are in minimum compliance (13.2%) 1,115 are in partial compliance (18.8%). There are 2,498 numbered exit signs. Compliance varies widely from region to region. For example, in Region 3, in north-central California in the area around Sacramento, 34% of exits are in full compliance and 51% are in partial compliance, whereas in Region 7, Los Angeles and Ventura counties, no exits are in full compliance and 4.4% are in partial compliance.

References

• CAHighways.org report on Cal-NExUS
• Caltrans' official Cal-NExUS site