Traffic and Safety

Traffic Safety Improvement Program (TSIP)

Changes to Program

Early submittal of applications is encouraged.  Total application should be no more than 25 pages in length. Do not include studies, endorsement letters, or testimonials. Hyperlinks to these documents can be included if further information is necessary.

DO NOT submit copies of individual crash reports. Submit a crash report summary from ICAT.

The Traffic Safety Improvement Program (TSIP) is defined by section 761, Chapter 164, of the Iowa Administrative Code. TSIP provides safety funds to cities, counties and the Iowa DOT in three separate categories.

Intent of program

To distribute funds for roadway safety improvements, traffic control devices, research, studies or public information initiatives.

Who is eligible to request funding?

Cities, counties or the Iowa DOT may request funding for use on any public roads.

FY 2022 Approved Projects/Funding Amounts


Qualifications for funding

Applications may be submitted for one of three categories.

  • Site-specific - construction or improvement of traffic safety and operations at a specific site or corridor with a crash history
  • Traffic control devices - purchase of materials for installation of new traffic control devices, such as signs, signals or pavement markings; or replacement of obsolete signs or signals
  • Research, studies and public information - transportation safety research, studies or public information initiatives, such as signing or pavement marking research, driver education/information, work zone safety, and crash data analysis improvements

Type of submittal required

Application form and instructions are available at the bottom of this page and shall be submitted electronically .

Maximum funding

TSIP awards cannot exceed $500,000 per project.

Type of approval required

Applications are reviewed by an internal/external committee of representatives from cities, counties and the Iowa DOT. Recommendations are then made to the Iowa Transportation Commission, which then approves funding of specific projects.

  • Site-specific projects are evaluated by benefit/cost ratio analysis and other criteria.
  • Funding for traffic control devices is awarded considering the safety benefits of eligible applications, annual funding level and other criteria.
  • Funding for research, studies and public information initiatives is awarded considering their relationship to safety, annual funding level and other criteria.

Program’s annual funding level

One half of one percent (0.5 percent) of Iowa’s Road Use Tax Fund.

  • $500,000 per year for traffic control device projects
  • $500,000 per year for research, studies and public information initiatives
  • Remainder available for site-specific projects (Amount varies by year - historically the amount ranges between $5 and $6 million per year.)

Important dates

Applications for the FY 2023 funding cycle are due no later than August 15, 2021.
Notice of approval will be sent by mid-January 2022, and funds will be available on July 1, 2022

Where to send applications

Applications shall be submitted electronically (as a clear and legible .pdf) to

For questions please email:

Forms and Links

  • Benefit/Cost Worksheet  (Rev. May 2018) - Includes B/C worksheets for both roadway segments and intersections/spot locations.
    Updated: Crash reduction factors (CRFs) should be obtained from the Iowa DOT’s Planning-Level CRF List. For countermeasures that are not listed or are not applicable, CRFs may be obtained from the Crash Modification Factors Clearinghouse website,

For information about other funding sources, see the Iowa DOT Funding Guide.