Exploring Alternative Intersections

Guest Post by Bryant Ficek, PE, PTOE, Vice President at Spack Consulting. For many of our studies, stop signs, traffic signals, and roundabouts supply the necessary capacity and acceptable operations. Sometimes, though, we handle projects that require innovative thinking and lead us toward consideration of alternative intersections. Alternative in this case being defined as not traditional […]

City of Albuquerque Tests Walkability Improvement

Over the past ten years, there has been a renewed interest in urban revitalization by many cities. The goal is to drive new economic opportunities in the heart of their downtown areas. At the same time, this renewed interest in the downtown areas has challenged the previous “auto-centric” design of the transportation systems that focused […]

Improving Pedestrian Crossings Case Studies

Pedestrian Crossings on a Corporate Campus and at a Grocery Store

A company’s greatest resources are generally its employees and its customers. While much emphasis is placed on providing customers with an exceptional product or service and providing employees with benefits that enhance their overall experience, it is important to not overlook the everyday elements that contribute to customer and employee satisfaction. The last thing any […]

4-Way Stop vs. Roundabout – MythBusters Experiment

MythBusters set up an experiment to determine which intersection works better – 4 Way Stop Signs or Roundabouts – check out the ten minute video below. Experiment Setup In a parking lot with barrels Single lane approaches at four legged intersection Show driver which way to go (left, through, right) as they pull up to the […]

Strict Speed Limits – Ignoring the 85th Percentile

Australia’s Take on Speed Limits

Guest Post by Bryant Ficek, PE, PTOE, Vice President at Spack Consulting. We’ve previously examined the 85th percentile speed and how it is used in Minnesota and many other places to set the speed limits on roads. Essentially, we take a survey of existing speeds and set the road speed limit at the point 85 percent […]

Two-Stage Turn Boxes for Bicyclists

Guest post by Jonah Finkelstein, EIT Spack Consulting For the less experienced bicyclist, navigating a busy roadway can be a challenge, even with the addition of designated cycle tracks. The cycle track separates the bicyclist from a vehicle lane, however does not address the issue of making safe turning movements across multiple vehicle lanes without […]

Bicycle Lane Conflict Zone Markings

Guest post by Jonah Finkelstein, EIT Spack Consulting Bicycle travel is once again becoming a more popular mode of transportation, resulting in a new focus on improving the existing bicycle infrastructure and adding more safe and maneuverable bicycle facilities for the devoted cyclists. One such addition is bringing a little green into our downtown area. […]

Are U-Turns Safe?

You want us to make a U-turn? In some situations the answer is yes. Requiring single occupant vehicles to make U-turns and subsequent right turns instead of direct left turns is a well-documented strategy for improving safety and minimizing delay along arterial corridors. According to the Transportation Research Board of The National Academies Access Management […]

Bicycle Parking Guidelines for Various Land Uses

I haven’t seen any scientific studies documenting how much bicycle parking is used at different kinds of developments (similar to Parking Generation for vehicles).  Many city ordinances have requirements for how many bicycle parking spaces (racks or storage lockers) are needed for different kinds of developments.  For instance, Minneapolis has very thorough requirements for bicycle […]