Barricades and pedestrian channelizers: how to close an area and keep an accessible route
Close a sidewalk safely with detectable edging and a detour every walker can use
Safety Behind the Wheel Foundation built this guide from the Federal Highway Administration (FHWA) traffic control manual and safety guidance, federal work zone regulations, Occupational Safety and Health Administration (OSHA) guidance, Insurance Institute for Highway Safety (IIHS) data and published research. Every source is listed at the end.
What these devices do, and what they do not do
A barricade is a portable or fixed device with one to three rails. It closes, narrows or marks off part of a road or path [3]. Its first job is awareness. From a distance, it tells a driver or walker that the usual way ahead is blocked.
Barricade rails carry alternating orange and white retroreflective stripes, which bounce headlight beams back toward the driver [3].
A pedestrian channelizer guides people on foot along a set path. The manual calls these “channelizing devices,” meaning devices that steer road users where to go. When they mark a walking path, they should carry a continuous detectable edging [2]. “Detectable” means a continuous edge within 6 inches of the ground. A person with a long white cane can then sense it and follow it [4].
Now the limit. Federal rules for highway projects use the term positive protection devices for equipment that contains or redirects vehicles and meets crash testing criteria [1]. A light barricade is not built for that job. OSHA’s work zone fact sheet lists barriers, crash cushions and truck mounted attenuators as the tools that limit vehicles entering a work area. It lists barricades in a separate group with cones and barrels [5].
Cones, drums, signs, arrow boards and temporary traffic barriers are separate topics. This guide stays with barricades and walking routes.
Why the walking route matters
In 2024, 7,080 pedestrians died in U.S. traffic collisions [6]. About 74% of those deaths happened away from intersections [6], and 73% happened between 6 p.m. and 6 a.m. [6]. These counts cover all roads, not only work zones. Still, they show where walkers face the most risk: places not built for them, and the dark.
A walkway lowers that risk. FHWA reports that sidewalks are linked to 65 to 89% fewer collisions involving pedestrians walking along a road [7]. If a work zone closes the sidewalk and offers nothing in return, walkers step into the street.
The manual requires adequate access and walkways for people on foot when a work zone affects them [2]. Its guidance asks for a convenient, accessible path that copies the best features of the existing sidewalk. It also says the route should steer walkers away from vehicles, equipment and work activity [2].
Think about who feels a bad detour first. A person in a wheelchair cannot step off a curb, and a person with a white cane cannot see a warning sign. A path that works for them works for everyone.
Who is responsible and which standards apply
The Manual on Uniform Traffic Control Devices (MUTCD) is the national standard for traffic control devices on any street, highway, bikeway or site roadway open to public travel [4]. The 11th Edition took effect on January 18, 2024 [8]. States had two years to adopt it, or a state manual or supplement in substantial conformance [9, 10]. That deadline passed on January 18, 2026 [9]. A Revision 1 rule took effect on March 5, 2026 [8]. This guide follows the December 2023 text, so check your state’s current manual for later wording.
The manual puts responsibility on the public body or official with jurisdiction. On a private site roadway open to public travel, it falls on the owner [2]. The rules cover construction, maintenance, utility and incident management work, so they reach contractors, utility crews, maintenance teams and accident response crews [2].
Planning comes first. Traffic control planning should be finished before a crew occupies the work area, even for minor jobs [2]. Pedestrian and worker safety provisions must be applied by knowledgeable people, such as trained or certified staff [2].
Event operators have a role too. For a planned special event that affects traffic, the traffic control plan should be developed with, and approved by, the agency that has jurisdiction [2]. Placing barricades across a street on your own is not a plan.
OSHA points to the MUTCD for how to set up work zone signs, barricades and flagging [11].
Barricade types and where each fits
The MUTCD sorts barricades into Type 1, Type 2 and Type 3. The device details below come from the 2009 edition of the manual [3]. Newer editions may word them differently. The 11th Edition still refers to Type 3 barricades for road closures [2].
Comparison compiled by Safety Behind the Wheel Foundation
Barricade types and where each fits
| Type | Where it fits | What to know |
|---|---|---|
| Type 1 or Type 2 | Places where traffic keeps moving through or past the work | Type 1 may suit conventional roads and urban streets. Type 2 or 3 is advised on freeways and other high speed roads [3] |
| Type 3 | Closing or partly closing a road | It can span the road or run curb to curb [3] |
| Sidewalk closure barricade | Blocking a closed walkway | It must be detectable and cross the full width of the closed route [2] |
In the 2009 edition, the stripes slope downward at 45 degrees toward the side where traffic should pass [3].
Signs often ride on barricades. A “Road Closed” sign goes in the middle of the roadway, mounted on or above the Type 3 barricade that blocks it [2].
Light frames can tip or slide. The 2009 manual allows sandbags on the lower frame as ballast and calls for ballast where wind could overturn barricades [3].
Pedestrian channelizers and detectable edging
A walking path needs edges that people can feel and follow. When channelizing devices mark a pedestrian path, a continuous detectable edging should run its full length so a long cane user can follow it [2]. Gaps defeat the purpose, because a cane can sweep through the space between two posts.
Different materials can mark a path, including fencing, temporary barriers and other traffic control devices, as long as the edge is continuous and detectable [2]. Fencing should not hide drivers’ view. It also should not be made of anything that could injure people if a vehicle struck it [2].
Do not rely on tape, rope or plastic chain stretched between posts to steer walkers. They are not detectable, so people with disabilities cannot use them [2]. Safety Behind the Wheel Foundation gives every crew and event organizer the same advice. A strand of tape says “closed” to a sighted walker. It says nothing to a person who cannot see it.
How to build an accessible detour
A vehicle detour sends road users onto existing roads to avoid the work area, and it should be signed along its entire length [2]. A walking detour needs the same care, plus features a car does not need. A sound plan follows an order like this one.
- Ask if the route can stay open. For short, attended work, an alternate route may not be needed if the crew can pause the work and people can move through [2]. Longer jobs need a real route.
- Close the old route with something detectable. A barrier a long cane user can detect must cross the full width of the closed walkway [2].
- Sign the choice early. Unless a good route on the same side is available, people should be directed, with advance signing, to cross to the other side [2]. Where a parallel sidewalk exists there, a “Sidewalk Closed, Use Other Side” sign fits [2].
- Make the crossing work. If walkers are sent to a temporary signal, an accessible pedestrian signal gives audible tones, speech or vibration. That tells a person who cannot see the signal when to cross [2].
- Build a usable path. It needs a smooth, continuous hard surface. Match the old width if you can. The manual treats 60 inches as the minimum. Where that is not possible, a 60 by 60 inch passing space should appear at least every 200 feet so wheelchair users can pass each other [2].
- Keep people away from traffic and machines. When walking and vehicle paths end up close together, consider a temporary traffic barrier between them [2]. Ordinary curbs are not a substitute where a barrier is needed [2].
- Walk the finished route. Do it in daylight and after dark. Try it with a cane, a wheelchair or a stroller if you can.
The manual also says people with vision disabilities should be told about blocked routes and alternate crossings. It names audible information devices and detectable barriers among the tools [2]. For accessibility details, it points to the Department of Justice’s 2010 ADA Standards for Accessible Design [2].
Why a barricade cannot stand in for a traffic barrier
“Crashworthy” has a specific meaning. Such a device lets a vehicle that hits it slow down, be redirected or pass through without strong resistance, which lowers risk to the people inside [4]. The manual requires certain devices to meet that standard [2]. The Manual for Assessing Safety Hardware sets crash test guidelines for permanent and temporary highway safety features [12].
Federal rules for workers go further. On federal aid highway projects, agencies must use positive protection devices in some high speed work zones. These are zones where workers have no way to escape traffic that enters the work space. An engineering study can find otherwise [1]. An ordinary plastic barricade is not one of these devices. The MUTCD adds that normal vertical curbing shall not stand in for a temporary traffic barrier when one is needed [2].
Research on lighter devices points the same way. Swedish researchers ran over 50 crash tests with a bicycle and dummy rider against 11 kinds of road equipment. They found that collisions with any of it can cause injuries. They advised avoiding work zone material on bike paths when possible, and using flexible or energy absorbing devices without sharp edges [13]. The study looked at cyclists, but the lesson fits any walking route.
In practice, do not count on a barricade to hold back a moving vehicle. If workers or walkers face fast traffic, the responsible agency needs real protection, such as a crash tested barrier, crash cushion or truck mounted attenuator.
Choosing and buying barricades
Typical buyers are road contractors, utility crews, maintenance departments, towing companies and event operators. Common sources are traffic control suppliers, equipment rental firms and qualified traffic control contractors.
On a public road, the agency in charge decides which devices are approved [5]. Ask for that list before you spend money.
Setup, inspection and upkeep
The manual says to monitor work zones as traffic, light and weather change. The aim is to confirm that devices work, can be seen clearly, are clean and follow the plan [2]. Routine day and night inspections are among its basic principles [2].
Remove what you no longer need. The manual calls for devices to be removed as soon as practical when they are not needed. If work stops for a short time, devices that no longer fit are to be removed or covered [2]. A barricade left across a finished sidewalk teaches people to ignore barricades.
What you can do
As a driver. Slow down near closures and expect people in or near the roadway. Rerouted walking paths can end up closer to traffic than normal [2]. Our guides on work zone driving and yielding to pedestrians cover the habits that help.
As a walker. Follow the signs, use the marked route, and do not move or step around barricades. If the route is unclear or unusable, tell the agency.
As a resident, parent, school board member or small employer. Find out who has jurisdiction. That is usually a city public works office, a county road department or a state transportation office. Then ask whether the plan includes a signed, accessible route for people on foot, and whether the closure is still needed.
Public traffic control devices must be selected, designed and installed by the responsible agency and its trained staff [2]. If you see a missing barricade or a blocked route, report it. Do not try to fix it. A community traffic safety program can help groups work with local agencies.
Frequently asked questions
Can a plastic barricade protect workers from traffic?
No. A barricade warns and guides. It is not built to stop or redirect a vehicle. Federal rules call for positive protection devices on federal aid projects where speeds are high and workers have no escape [1]. If you worry about worker exposure, ask how the work area is protected, not only how it is marked.
Is caution tape or rope enough to close a sidewalk?
No. People with vision disabilities cannot detect tape, rope or plastic chain, so the manual says not to use them to control walkers [2]. A closed walkway needs a barrier that a long cane user can detect, placed across the full width of the closed route [2].
How wide should a temporary walkway be?
The manual says to match the existing walkway width if practical, with a 60 inch minimum. If that is not possible, it calls for a 60 by 60 inch passing space at least every 200 feet [2]. Local rules may add detail, so ask the agency.
Do I need approval to close a street for an event?
For a planned special event that affects traffic, the manual says the plan should be developed with, and approved by, the agencies that have jurisdiction [2]. Permit steps vary by place. Contact your city or county first, well before the event.
What is the difference between a detour and a diversion?
A detour sends road users onto an existing road to avoid the work area. A diversion sends them onto a temporary road or alignment built around the work. Detours should be signed clearly along their full length [2]. For walkers, the same idea applies: the alternate route should be easy to follow.
The bottom line
Recommendation from Safety Behind the Wheel Foundation
Safety Behind the Wheel Foundation urges every crew and organizer that closes a walkway to give people a detectable, accessible route around it. A barricade says the way ahead is closed. A pedestrian channelizer adds a second message: here is where to walk instead. For everyone to get that message, the route must be detectable, wide enough, smooth and kept away from traffic [2].
Neither device is impact protection. If workers or walkers face fast traffic, the answer is a crash tested barrier or other positive protection planned by the responsible agency [1]. When you see a closed walkway with no clear alternate route, report it to the agency that controls the road.
Related articles
- Work zone and move over safety: protect road crews, responders and you
- Pedestrian safety for drivers: how to spot, yield to and protect walkers
- Safe System approach: how road design protects you from human mistakes
- How to build a community traffic safety program that lasts
- Pedestrian and crosswalk laws by state: who must yield, and when
Sources and further reading
- 1Electronic Code of Federal Regulations (eCFR). 23 CFR Part 630, Subpart K: Temporary Traffic Control Devices. Current as of September 28, 2026. ecfr.gov/…/subpart-K
- 2Federal Highway Administration (FHWA). Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition, Part 6: Temporary Traffic Control. Published December 2023. mutcd.fhwa.dot.gov/pdfs/11th_Edition/part6.pdf
- 3Federal Highway Administration (FHWA). Manual on Uniform Traffic Control Devices, 2009 Edition with Revisions 1 and 2, Part 6, Chapter 6F: Temporary Traffic Control Zone Devices (earlier edition, superseded by the 11th Edition). Page date not shown; reviewed October 2026. mutcd.fhwa.dot.gov/htm/2009r1r2/part6/part6f.htm
- 4Federal Highway Administration (FHWA). Manual on Uniform Traffic Control Devices for Streets and Highways, 11th Edition, Part 1: General (Sections 1B.01 and 1C.02). Published December 2023. mutcd.fhwa.dot.gov/pdfs/11th_Edition/part1.pdf
- 5Occupational Safety and Health Administration (OSHA). Work Zone Traffic Safety (fact sheet). Published September 2005. osha.gov/…/work_zone_traffic_safety.pdf
- 6Insurance Institute for Highway Safety (IIHS). Fatality Facts 2024: Pedestrians. Posted June 2026. Data year: 2024. iihs.org/…/pedestrians
- 7Federal Highway Administration (FHWA). Walkways, Proven Safety Countermeasures. Update date not shown on page; reviewed October 2026. highways.dot.gov/…/walkways
- 8Federal Highway Administration (FHWA). Manual on Uniform Traffic Control Devices (MUTCD) home page. Reviewed October 2026 (page lists an August 5, 2026 training update). mutcd.fhwa.dot.gov
- 9Federal Highway Administration (FHWA). Information by State, MUTCD website. Update date not shown on page; reviewed October 2026. mutcd.fhwa.dot.gov/…/index.htm
- 10Electronic Code of Federal Regulations (eCFR). 23 CFR 655.603, Standards. Current as of October 1, 2026. ecfr.gov/…/section-655.603
- 11Occupational Safety and Health Administration (OSHA). Highway Work Zones and Signs, Signals, and Barricades – Overview. Update date not shown on page; reviewed October 2026. osha.gov/highway-workzones
- 12Federal Highway Administration (FHWA). AASHTO Guidance (Manual for Assessing Safety Hardware). Updated August 6, 2025. highways.dot.gov/…/aashto-guidance
- 13Niska A, Wenäll J, Karlström J. Crash tests to evaluate the design of temporary traffic control devices for increased safety of cyclists at road works. Accident Analysis & Prevention, 166:106529. Published December 2021 (PubMed record). pubmed.ncbi.nlm.nih.gov/34954547
This article reflects the safety priorities of work zone safety and accessible walking routes for people on foot. It is general education, not legal or regulatory compliance advice. Work zone rules change, and states adopt them differently, so verify details with official sources. For a specific site, contact the public works office, transportation agency or utility that controls the road. Employers can ask their safety professional or OSHA, and accessibility questions can go to a local ADA coordinator. Reviewed October 2026.
Cite this article: Safety Behind the Wheel Foundation. “Barricades and pedestrian channelizers: how to close an area and keep an accessible route.” drivewithcare.org, https://drivewithcare.org/barricades-pedestrian-channelizers-accessible-detours/. Reviewed October 2026.
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