The Reno Spaghetti Bowl is slotted for some big changes over the next two decades.

With more than 460,000 vehicles driving through it every day, the Spaghetti Bowl serves as the heart of a busy transportation system that connects Interstate 80 with U.S. Highway 395 and I-580.

With several construction and redevelopment plans in the work, the possible changes will impact more than just the commuters who use the Spaghetti Bowl every day.

Here's a look at why the Spaghetti Bowl is planning this overhaul, who it will impact, and what it means for Reno.

1. It's one of the more dangerous roadways in Nevada

The map below shows every injury crash reported on Interstate 80 and U.S. 395/I-580 from 2015-2017. The darker the color, the higher number of injuries.

Because of its outdated design and an increase in traffic over the years, the Reno Spaghetti Bowl features some of the most dangerous stretches of road in Northern Nevada.

DEADLY CRASHES:What is the deadliest stretch of road in Reno’s Spaghetti Bowl?

The 12 miles within the Spaghetti Bowl Project sees 25 percent more crashes than similar roadways in the state. The rate of fatal crashes within the Spaghetti Bowl is also 22 percent higher than the state average for highways. Accidents are a key cause of travel delays in and around the Spaghetti Bowl second only to bottlenecks.

The map below shows the most dangerous stretches of the Reno Spaghetti Bowl.

2. The Reno Spaghetti Bowl is scheduled for a massive change

By summertime, the state will choose its final plan for a comprehensive fix of the Spaghetti Bowl interchange.

The project’s first phase, dubbed “Spaghetti Bowl Xpress,” will cost $150 million and start construction early next year.

SPAGHETTI BOWL PLAN:NDOT preferred plan to retain southbound airport ramp

Here's a look at what the finished product might look like:

3. Schools and businesses may be impacted by construction

To solve the interchange’s problems and make the surrounding freeways viable for decades instead of just a few years, big changes need to be made. These include adding more space on the freeway as well as braided ramps for safer merging.

SPAGHETTI BOWL: Here are the people whose lives will be changed by the project

Such changes, however, require extra real estate. Here's a look at those who may be displaced or impacted by the project:

4. Entire neighborhoods could be lost for the Spaghetti Bowl Xpress

The Spaghetti Bowl Xpress plan will impact a diverse range of nearby neighborhoods and areas in the next two decades.

The project could potentially displace an estimated 850 people in 326 residences should the Nevada Department of Transportation’s preferred plan be approved. Some neighborhoods, such as the entire nearby Butler Street neighborhood, will effectively cease to exist if construction goes forward as planned.

The map below shows the properties that will be affected by the most likely plan for the Spaghetti Bowl overhaul:

5. Construction is slotted to end in 2039

In 1969, Reno-Sparks started construction on an interchange connecting two major roadways.

For the next half-century, the Spaghetti Bowl would prove to be a key fixture in Northern Nevada’s transportation network, serving more than 460,000 vehicles that drive daily through Interstate 80 and 580 as well as U.S. Highway 395.

RENO SPAGHETTI BOWL TIMELINE:History and future plans from 1969 to 2039

The interchange is in need of an upheaval, and the five-phase Spaghetti Bowl project is planned to start construction in 2020 and end in 2039. Here's a look at the plan, and the full history of the Spaghetti's growth over 50 years: