Hutton & Leavenworth Improvements

  • Project typeIntersection Reconstruction
  • Project scheduleJanuary 2024 to October 2024
  • Completion DateOctober 17, 2024
A visualization of the Hutton & Leavenworth intersection as seen from about

The Unified Government's Public Works Department is thrilled to introduce the Hutton Road & Leavenworth Road Roundabout Project in a progressive move to modernize our city's traffic infrastructure. This initiative is not just about reshaping traffic; it's about community involvement, fostering growth, and improving safety for motorists and pedestrians.

In a collaborative endeavor, Public Works has partnered with Piper High School. Senior students from Piper High will design a central feature or installation for the roundabout as part of their capstone project, a graduation requisite. This collaboration is a golden opportunity for these budding talents to acquire hands-on experience in engineering, project management, design, art, and communications. Dive in to understand the project's objectives, benefits, and how it will reshape our daily commute, and our community's involvement in it below.

Join the Open House on December 12 from 5 to 7 PM.

About the Project

When will construction begin and end?

Construction is set to commence in early 2024. During this period, Leavenworth Road between Hutton and 107th will be closed until Fall 2024. Additionally, Hutton Road will be temporarily closed starting Summer 2024.

The project will be substantially complete and open to limited traffic by July 29, weather depending. All aspects of the project will be complete by October 17. Detour routes will be posted for convenience.

For everyone's safety, we urge you to reduce speed and remain vigilant around construction zones.

Will there be road closures during construction?

Yes - Unfortunately, large construction projects like this one often require road closures. Construction will begin in early 2024. During this period, Leavenworth Road between Hutton and 107th will be closed until Fall 2024.

Additionally, Hutton Road will be temporarily closed starting Summer 2024. We anticipate completing the project before the school year begins in Fall 2024. Detour routes will posted for convenience. For everyone's safety, we urge you to reduce speed and remain vigilant around construction zones.

Why was the Hutton & Leavenworth intersection chosen for a roundabout?

A graphic showing the location of the roundabout at Hutton and Leavenworth Roads as viewed from above(PNG, 915KB)
Over the past few years, the Unified Government has evaluated safety and travel conditions in this area to determine needed safety improvements. Through that review and evaluation, a roundabout was determined to be a needed safety improvement at the intersection. This is a busy intersection node between Piper, I-435, and the Legends Outlets that experiences a high volume of traffic from all directions. Our findings show:

  • A history of right-angle crashes and rear-end crashes. Right-angle crashes, sometimes called “T-Bone” crashes, are often more severe than other crashes.
  • Current traffic volumes have outgrown the capacity of the existing lanes and traffic signals.
  • Poor intersection visibility on the westbound intersection approach.
  • A wide variety of roadway users. Piper High School and Piper Prairie Elementary School are both located within 2 miles of intersection.
  • Projections indicate that traffic volumes will continue to increase at the intersection as the community continues you grow.

Roundabouts have many benefits for motorists and pedestrians. Here are a few notable ones:

  • Improves safety by reducing conflict points
  • Significantly reduces the risk of serious and fatal crashes
  • Promotes lower speeds and traffic calming
  • Reduces delays compared to traditional stop signs or traffic signals

Roundabouts are preferable to traditional intersections for many reasons. When designed and properly implemented, roundabouts can significantly improve safety for motorists:

  1. Reduced Conflict Points: Traditional intersections have multiple points where vehicle paths can cross, leading to potential collisions. Roundabouts reduce these conflict points, thus decreasing the chances of accidents.

  2. Lower Speeds: The geometry of a roundabout naturally requires drivers to reduce their speed as they approach and navigate through it. Lower speeds mean that, even if a collision does occur, it is likely to be less severe than at higher speeds.

  3. Elimination of Head-on and High-speed Right-angle Collisions: The circular design of roundabouts ensures that all traffic moves in the same direction, eliminating the possibility of head-on or high-speed right-angle (or "T-bone") collisions.

  4. Simpler Decision-making: Unlike traditional intersections where drivers might have to make split-second decisions about whether to stop, go, or wait, roundabouts usually only require drivers to yield and then merge when it's safe.

  5. Reduced Severity of Crashes: When accidents do occur in roundabouts, they tend to be of the sideswipe or rear-end variety, which are generally less severe than the types of crashes that occur at traditional intersections.

  6. Pedestrian Safety: While not directly related to motorists, the design of modern roundabouts often includes pedestrian crosswalks set one car-length back from the yield line. This makes it easier for drivers to deal with pedestrians and other vehicles separately.

  7. Fewer Stops and Shorter Delays: This doesn't just improve efficiency; it can also enhance safety. When vehicles move smoothly without unnecessary stops, there's less chance of rear-end collisions.

  8. Accommodation of Larger Vehicles: Many roundabouts are designed with a truck apron—a raised section of pavement around the central island—that provides additional space for large vehicles' rear wheels, ensuring they can navigate the roundabout safely.

Who is the contractor for this project?

Miles Excavating, Inc. is the contractor for this $7,000,000 project. Their team was selected following a competitive bidding process in September 2023.

Project Progress

As the project gets underway, check back here for important updates and photographs.

Safety & Navigating Roundabouts

How will the roundabout enhance motorist safety?

Roundabouts are preferable to traditional intersections for many reasons. When designed and properly implemented, roundabouts can significantly improve safety for motorists:

  1. Reduced Conflict Points: Traditional intersections have multiple points where vehicle paths can cross, leading to potential collisions. Roundabouts reduce these conflict points, thus decreasing the chances of accidents.

  2. Lower Speeds: The geometry of a roundabout naturally requires drivers to reduce their speed as they approach and navigate through it. Lower speeds mean that, even if a collision does occur, it is likely to be less severe than at higher speeds.

  3. Elimination of Head-on and High-speed Right-angle Collisions: The circular design of roundabouts ensures that all traffic moves in the same direction, eliminating the possibility of head-on or high-speed right-angle (or "T-bone") collisions.

  4. Simpler Decision-making: Unlike traditional intersections where drivers might have to make split-second decisions about whether to stop, go, or wait, roundabouts usually only require drivers to yield and then merge when it's safe.

  5. Reduced Severity of Crashes: When accidents do occur in roundabouts, they tend to be of the sideswipe or rear-end variety, which are generally less severe than the types of crashes that occur at traditional intersections.

  6. Pedestrian Safety: While not directly related to motorists, the design of modern roundabouts often includes pedestrian crosswalks set one car-length back from the yield line. This makes it easier for drivers to deal with pedestrians and other vehicles separately.

  7. Fewer Stops and Shorter Delays: This doesn't just improve efficiency; it can also enhance safety. When vehicles move smoothly without unnecessary stops, there's less chance of rear-end collisions.

  8. Accommodation of Larger Vehicles: Many roundabouts are designed with a truck apron—a raised section of pavement around the central island—that provides additional space for large vehicles' rear wheels, ensuring they can navigate the roundabout safely.

How will the roundabout enhance pedestrian safety?

Roundabouts are preferable to traditional intersections for many reasons. When designed and properly implemented, roundabouts can significantly improve safety for pedestrians & motorists:

  1. Reduced Vehicle Speeds: One of the primary design characteristics of a roundabout is that it forces vehicles to reduce their speeds. Slower vehicle speeds give drivers more time to see and react to pedestrians.

  2. Crossing Distance: Pedestrian crossings at roundabouts are typically shorter because they only need to cross one direction of traffic at a time. This reduced crossing distance decreases the time pedestrians are in the roadway, reducing exposure to vehicles.

  3. Refuge Islands: Many modern roundabouts incorporate pedestrian refuge islands between traffic lanes. These islands provide a safe place for pedestrians to stop and assess traffic before crossing the next lane.

  4. Fewer Conflict Points: Roundabouts reduce the number of potential conflict points between vehicles and pedestrians. At a traditional intersection, there are multiple points where vehicles can come into conflict with pedestrians. In contrast, roundabouts have fewer of these points, primarily at the entrance and exit of the roundabout.

  5. Predictable Movements: The circular nature of roundabouts means that vehicles are predictable in their movements, making it easier for pedestrians to judge gaps in traffic and cross safely.

  6. Elimination of Right-turn-on-red: Traditional intersections often allow vehicles to turn right after stopping at a red light. This can lead to conflicts with pedestrians crossing the street. At a roundabout, this conflict is eliminated since there are no traffic signal phases.

  7. Increased Visibility: The geometric design of roundabouts often provides better visibility for both drivers and pedestrians. As drivers approach a roundabout, they are more alert and looking for potential conflicts, which enhances pedestrian visibility.

  8. Reduced Severity of Potential Collisions: If a collision does occur between a vehicle and a pedestrian at a roundabout, the reduced vehicle speeds mean the collision is likely to be less severe than at a traditional intersection.

  9. Sidewalk Continuity: Sidewalks or pathways around a roundabout provide a continuous path for pedestrians, maintaining a separation from vehicular traffic.

  10. Signage and Markings: Proper signage and pavement markings at and around roundabouts guide pedestrians and alert drivers to potential pedestrian crossings.

In essence, the design and operation of modern roundabouts inherently prioritize pedestrian safety, making them safer environments for pedestrians compared to traditional intersections.

How do I navigate the roundabout as a driver or a pedestrian?

For drivers, always yield to traffic already in the roundabout and follow the provided signage. Large trucks may use the entire width of the roundabout, so give them ample space. Bicyclists and pedestrians have designated pathways and should adhere to safety protocols and signage.

To see how vehicles will navigate the Leavenworth & Hutton roundabout, check out this video:

Safety Tips for Pedestrians

  1. Approach with Caution: As you approach the roundabout, be aware of your surroundings and any potential hazards. This includes checking for vehicles that might be approaching or already in the roundabout.

  2. Use Designated Crosswalks: Modern roundabouts typically have pedestrian crosswalks located one car-length back from the yield line. Always use these designated crosswalks to cross the road.

  3. Look Both Ways: Even though traffic will move to the right, it is important to look both directions before crossing. Doing so will help you identify possible safety issues before crossing the street.

  4. Cross One Approach at a Time: Roundabouts are designed to allow pedestrians to cross one direction of traffic at a time. This means you'll cross to a "pedestrian refuge," then wait as necessary before crossing the next section of road.

  5. Make Eye Contact: Before crossing, try to make eye contact with drivers if possible. This ensures that they've seen you and are more likely to stop.

  6. Wait for a Safe Gap: Wait on the sidewalk or the pedestrian refuge until there is a safe gap in traffic. Remember, vehicles already in the roundabout have the right-of-way.

  7. Do Not Cross to the Central Island: Whether single or multi-lane, never cross by using the roundabouts central island. Instead, use the pedestrian crossings located around the outside of the roundabout.

  8. Be Aware of Bicyclists: Be aware of bicyclists who might be using these lanes or paths.

  9. Stay Alert: Even if you have the right-of-way as a pedestrian, always stay alert and be prepared for vehicles that might not yield.

Safety Tips for Motorists

  1. Approach with Caution: As you near the roundabout, reduce your speed. Look out for signs or road markings that provide guidance on lane usage and yielding.

  2. Yield to Pedestrians: Before entering the roundabout, always yield to any pedestrians in the crosswalk.

  3. Look Both Directions: Although traffic will approach from the left, you should always look both directions before entering the roundabout.

  4. Yield to Traffic Inside the Roundabout: Vehicles already in the roundabout have the right-of-way. Wait until there is a safe gap in the traffic before entering.

  5. Enter the Roundabout: Once you see a safe gap in traffic, enter the roundabout. You now have the right-of-way over vehicles that are approaching the roundabout.

  6. Keep to the Lane: Stay within the single lane and do not attempt to overtake over vehicles.

  7. Signal Your Exit: Before you reach the exit you intend to take, use your turn signal to indicate your intentions. This helps other drivers understand your intentions and can prevent potential accidents.

  8. Yield to Pedestrians: As you enter or exit the roundabout, be sure to yield to any pedestrians who might be in the crosswalk.

  9. Do Not Stop Inside the Roundabout: Do not stop except to avoid a collision once inside the roundabout. If you missed your exit, continue around the roundabout until you reach it again.

Are roundabouts safe for emergency vehicles?

Absolutely! Roundabouts have long been recognized for their inherent safety features for everyday motorists and emergency vehicles. Their design naturally regulates traffic flow and reduces high-speed collisions. These factors play a pivotal role in ensuring the safety of emergency vehicles that need to navigate intersections quickly.

We've gone a step further for the Hutton Road & Leavenworth Road Roundabout. Recognizing the critical role that emergency services play in our community, we have collaborated closely with the Kansas City, Kansas Fire Department during the design phase. This partnership ensured that the roundabout is specifically tailored to accommodate large vehicles, such as Pumpers.

This proactive approach guarantees that in times of emergencies, our Fire Department can swiftly and safely navigate the roundabout without impediments. The design ensures a smooth passage for such large vehicles and maintains the safety standards for other road users. Through such meticulous planning and collaboration, the roundabout promises efficiency, safety, and rapid response times for our emergency services.

Piper High School Involvement

How is Piper High School involved in the project?

Senior students from Piper High School will design a unique feature or installation for the center of the roundabout. This partnership serves as a valuable learning experience for the students, allowing them to apply real-world skills in areas like engineering, project management, design, art, and communications. This initiative aligns with Piper High School's commitment to holistic education, as reflected in its diverse sports programs, extracurricular activities, and emphasis on hands-on learning.

What is the significance of the student-designed feature in the roundabout?

The student-designed feature will be the centerpiece of the roundabout, symbolizing community involvement, creativity, and the future of our city. By involving students in this real-world project, we aim to allow them to showcase their talents, gather practical experience, and contribute significantly to the community's infrastructure.