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Traffic Safety Manual

The Iowa DOT currently uses the 2003 Manual on Uniform Traffic Control Devices (MUTCD) except for exceptions noted in Iowa Admin. 761-130.1

Please direct questions related to the content of this manual to:
Office of Traffic and Safety at 515-239-1557 or Jeff Stratton at 515-239-1154

View All Chapters Chapter 01 - Introduction Chapter 02 - Signing Chapter 03 - Pavement Markings Chapter 04 - Signals Chapter 05 - Speed Limits Chapter 06 - Lighting Chapter 07 - Traffic Engineering Studies Chapter 08 - Temporary Traffic Control Chapter 09 - Access Chapter 10 - Utilities Chapter 11 - Advertising Management Chapter 12 - Crash Analysis Resources Chapter 13 - Safety Program Chapter 14 - SMS Chapter 15 - Sign Shop Chapter 16 - Sample Plans Chapter 18A-1 At Stop Signs Sort by year    ascending descending

Chapter	Table of contents	Last updated
Chapter 1
1A General	1A-1 About This Manual	1/27/04
Chapter 2 - Signing
2A General	2A-1 Purpose of Signing 2A-2 Standards and Guidelines - MUTCD 2A-3 Types of Signs 2A-4 Sign Management Program 2A-5 Sign Design 2A-6 Installation Guidelines 2A-7 Sign Mounting Requirements 2A-8 Sign PlacementD 2A-9 Miscellaneous Requirements 2A-10 Typicals and Additional Figures	12/17/01 11/29/05 12/17/01 01/27/04 12/17/01 04/04/06 10/02/06 12/17/01
2B Regulatory Signs	2B-1General 2B-2 Stop and Yield Signs 2B-3 Speed Limits Signs 2B-4 Alignment and Movement Signs 2B-5 Parking Signs 2B-6 Other Regulatory Signs	12/12/05 10/02/06 12/12/05 04/23/07 12/12/05 04/23/07
2C Warning Signs	2C-1 Roadway Related Signs 2C-2 Traffic Related Signs 2C-3 Supplemental Plaques	4/23/07 04/23/07 12/16/05
2D Guide Signs	2D-1 Conventional Roads 2D-2 Freeway and Expressway	09/2/09 04/23/07
2E Portable Changeable Message Signs	2F-1 General 2F-2 Guidelines 2F-3 Operating Fundamentals 2F-4 Message Design	12/16/05 12/16/05 12/16/05 12/16/05
Chapter 3 - Pavement Markings
3A General	3A-1 Purpose of Pavement Markings 3A-2 General Requirements	1/27/04 01/27/04
3B Pavement Markings Standards	3B-1 Pavement Marking Standards 3B-2 Typical Pavement Marking Layouts	1/27/04 11/07/06
3C Manual on Pavement Marking Programs	3C-1 Application of Pavement Markings 3C-2 Traffic Control	1/27/04 1/27/04
3D Pavement Markings Management Program
Chapter 4 - Signals
4A General	4A-1 General	12/17/01
4B Installation Justification	4B-1 Installation Justification	12/17/01
4C Design	4C-1 General 4C-2 Standards and Guidelines 4C-3 Plan Requirements 4C-4 Specifications and Special Provisions	12/17/01
4D Construction	4D-1 Shop Drawings and Catalog Cuts 4D-2 Daily Inspections 4D-3 Final Inspection 4D-4 Turn On	06/06/06
4E Operations	4E-1 General 4E-2 Timings 4E-3 Phasing 4E-4 Coordination 4E-5 Flashing Operation 4E-6 Pre-emption	12/17/01
4F Maintenance	4F-1 General 4F-2 Preventative Maintenance 4F-3 Responsive Maintenance	12/17/01
4G Removal	4G-1 Justification 4G-1 Justification 4G-2 Procedure
Chapter 5 - Speed Limits
5A Process for Establishing Speed Limits	5A-1 Process for Establishing Speed Limits	04/04/06
Chapter 6 - Lighting
6A General	6A-1 General and Definitions 6A-1 General and Definitions	12/17/01
6B Rural Intersections	6B-1 Intersection Lighting Warrants	12/17/01
6C Interchanges	6C-1 Interchange Lighting Warrants	12/17/01
6D Freeways	6D-1 Freeway Lighting Warrants	12/17/01
6E Freeways	6E-1 Bridge Lighting	12/17/01
6E Freeways	6E-1 Bridge Lighting	12/17/01
Chapter 7 - Traffic Engineering Studies
7A No Passing Zones	7A-1 General 7A-2 Rope Method 7A-3 Distance Measuring Instrument Method 7A-4 Safety and Equipment	02/07/06 02/07/06 02/07/06 02/07/06
7B Curve Speed Study	7A-1 General 7A-2 Rope Method 7A-3 Distance Measuring Instrument Method 7A-4 Safety and Equipment	02/07/06 02/07/06 02/07/06 02/07/06
7C Curve Speed Study	7C-1 County Road 7C-2 Rural Primary 7C-3 Primary Highway Extension
7D Accident Study
7E Traffic Control Warrant Studies	7E-1 Traffic Signal Warrants 7E-2 Multiway Stop Warrants
7F-1 School Crossing Study	7F-1 School Crossing Study	10/02/06
7F-1 School Crossing Study	7F-1 School Crossing Study	10/02/06
7G Sight Distance Studies	7G-1 Access Control 7G-2 Intersection 7G-3 School Bus Stop	02/07/06 02/07/06 10/02/06
7H Delay Studies	7H-1 Intersection Delay Studies	02/19/07
7I Traffic Volume	7I-1 Traffic Volume Studies	02/19/07
7J Signing and Pavement Marking Audits	7J-1Signing Audits 7J-2 Pavement Marking Audits	02/07/06
Chapter 8 - Temporary Traffic Control
8A General
8B Traffic Control Standards	Chapter Not Available - Standard Road Plans TC
8C Offsite Detours
Chapter 9 - Access
9A Access - General
9B Access - Frequently Asked Questions	Chapter Not Available- For Related Information Click Here
9C Access - Policy
Chapter 10 - Utilities
10A Access - General
10B Frequently Asked Questions
10C Policy	Chapter Not Available - For Related Information Click Here
10D Additional Figures
Chapter 11 - Advertising Management
11A General
11B Signing Programs	Chapter Not Available - For Related Information Click Here
Chapter 12 - Crash Analysis Resources
12A General	Visit Web site
12B Crash Mapping Tool (CMaT)	Additional CMaT information
12C SAVER	Additional SAVER information
Chapter 13 - Safety Program
13A General
13B Traffic Engineering Assistance Program (TEAP)	TEAP (Click here to go to Funding Guide) - Look on Page 38 of the Funding Guide
13C Traffic Safety Improvement Program (TSIP/TSF)	TSIP/TSF
13D Highway Safety Improvement Program (HSIP)
13E Safety Studies
Chapter 14 - SMS
14A General	14A General	12/17/01
Chapter 15 - Sign Shop
15A General
15A General	Sign Catalog available(DOTNET Users Only)
15C How to Order Signs
Chapter 16 - Sample Plans
16A General		04/04/06
16B Signals		04/04/06
16C Signing Plans		04/04/06
16D Lighting Plans		04/04/06
Chapter 18A-1 At Stop Signs
18A Rumble Strips	18A-1 At Stop Signs	04/04/06