Document Request

The Los Angeles Department of Transportation is a recognized leader in the delivery of exceptional transportation services to our customers through continuous improvement, innovation and teamwork. LADOT’s Traffic Records Section is proud to offer documents so the public can review its transportation projects in great detail. In full compliance with the Freedom of Information Act, the Department of Transportation provides copies of its documents upon request.

Requestors should expect to pay a reasonable fee to cover the cost of printing document copies. Document requests forms can be downloaded in PDF form and submitted by fax or mail to the Los Angeles Department of Transportation.

Requests will be closed and returned to the requested or if a payment for copying services is not received within 45 days of the date of the original request.

Please be advised that there is a four-month delay in entering data into the Department’s records computer. Therefore, please do not request information that is less than four months old.

The Traffic Records Section routinely assists constituents in obtaining a number of frequently requested public documents.

History of Signal Maintenance Report

This report shows the maintenance or service history of traffic signals at a particular location. Allow three to six weeks to obtain this report.

Signal Timing Chart

The Signal Timing Chart shows how the timing of a particular signal is set. The chart shows the sequence of applicable traffic signal displays, such as red, yellow, green, pedestrian walk, “don’t walk” and left or right turn arrows. This report is available within 10 business days of receipt of the request.

Signal Plan Map

This intersection map shows the location of signals at an intersection. It is printed on large format – 17 by 20 inch paper. It is usually available within three weeks of receipt of the request.

Sign Maintenance History Report

This is a dual report that combines the Sign Record and Sign Work Order Record into a document that shows all signs types. It organizes the signs by type, size, location, date installed, maintenance dates, replacement dates, work done and work order numbers. No information is available for years after 2000.

Stop Sign Map

This map shows the condition of a stop sign and its latest inspection date. Allow three weeks for processing.

Geometric Plan Map

This map shows the pavement markings at an intersection. It shows crosswalks, lane markings, left turn lane markings and the dimensions of the street. Maps may not be available for all intersections. Allow about three weeks for processing.

Work Orders

Records for work orders can be requested for signs, signals, mark-outs, paint and more.

Speed Survey

This study of advisory speed limits is available for routed streets. Requests for this type of document should specify a specific location, such as along Main Street from 1st to 9th Streets.

Traffic Signal Symbols

This chart shows the various map symbols used to designate the different types of traffic signals. It consists of four pages.