Office of Traffic and Safety

Traffic and Safety Manual

The Iowa DOT currently uses the 2009 Manual on Uniform Traffic Control Devices (MUTCD) except for exceptions noted in 761 IAC 130.1.

Call 515-239-1557 for questions related to the content of this manual.

Chapter 1 - Introduction

Title Description Last updated
1A General 1/27/04

Chapter 2 - Signing

Title Description Last updated
2A General 11/05/15
11/05/15
11/05/15

11/05/15
11/05/15
12/17/01
5/08/13
10/02/06
11/05/15
2B Regulatory Signs 12/12/05
10/02/06
1/10/11
12/12/05
12/12/05
4/23/07
2C Warning Signs 4/23/07
10/13/06
12/16/05
2D Guide Signs 4/23/07
4/23/07
2E Portable Changeable Message Signs 12/16/05
2F Permanent Changeable Message Signs 12/16/05
12/16/05
12/16/05
12/16/05
2G Scenic Byways Signs 5/17/11

Chapter 3 - Pavement Markings

Title Description Last updated
3A General 1/27/04
1/27/04
3B Pavement Markings Standards 5/02/13
4/26/13
3C Manual on Pavement Marking Programs 1/27/04
1/27/04
3D Pavement Markings Management Program    

Chapter 4 - Signals

Title Description Last updated
4A General 12/17/01
4B Installation Justification 12/17/01
4C Design
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
6/06/06
4E Operations
4E-2 Timings
4E-3 Phasing
4E-4 Coordination
4E-5 Flashing Operation
4E-6 Pre-emption
12/17/01
4G Removal 4G-1 Justification
4G-2 Procedure
 

Chapter 5 - Speed Limits

Title Description Last updated
5A Process for Establishing Speed Limits 04/04/06

Chapter 6 - Lighting

Title Description Last updated
6A General
12/17/01
6B Rural Intersections 12/17/01
6C Interchanges 12/17/01
6D Freeways 12/17/01
6E Freeways 12/01/11

Chapter 7 - Traffic Engineering Studies

Title Description Last updated
7A No Passing Zones 05/07/13
02/07/06
2/07/06
2/07/06
7B Curve Speed 10/02/06
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 10/02/06
7G Sight Distance Studies 2/07/06
2/07/06
10/02/06
7H Delay Studies 2/19/07
7I Traffic Volume 2/19/07
7J Signing and Pavement Marking Audits 7J-2 Pavement Marking Audits 2/07/06

Chapter 8 - Temporary Traffic Control

Title Description Last updated
8A General
 
8B Traffic Control Standards Chapter not available
Standard Road Plans TC
 
8C Offsite Detours    

Chapter 9 - Access

Title Description Last updated
9A Access - General
 
9B Access - Frequently Asked Questions Chapter not available
See related information
 
9C Access - Policy    

Chapter 10 - Utilities

Title Description Last updated
10A Access - General
 
10B Frequently Asked Questions    
10C Policy Chapter not available
Related information
 
10D Buy America Utility Relocations 10D-1 General
10D-2 Material lists
10D-3 Flowcharts
10D-4 Bill of Materials
10D-5 Certification Document
10D-6 Compliance
10D-7 Links and Contacts
2/01/16
2/01/16
2/17/14
2/01/16
2/17/14
2/17/14
2/17/14

Chapter 11 - Advertising Management

Title Description Last updated
11A General
 
11B Signing Programs Chapter not available
Related information
 

Chapter 12 - Crash Analysis Resources

Title Description Last updated
12A General Visit web site
 
12B Crash Mapping Tool (CMaT) Additional CMaT information
 
12C SAVER Additional SAVER information
 

Chapter 13 - Safety Program

Title Description Last updated
13A General
 
13B Traffic Engineering Assistance Program (TEAP) TEAP (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

Title Description Last updated
14A General

12/17/01

Chapter 15 - Sign Shop

Title Description Last updated
15A General    
15A General  
15C How to Order Signs    

Chapter 16 - Sample Plans

Title Description Last updated

16A General
16B Signals
16C Signing
16D Lighting Plans

  4/04/06

Chapter 18 - 18A-1 At Stop Signs

Title Description Last updated
18A Rumble Strips

2/11/14