Driver’s Handbook Updates – Transportation System Management & Operations Division has been coordinating with the Colorado Department of Revenue to provide several editorial and illustrative updates to the 2017 edition of Colorado Driver's Handbook. Information about traction regulations, "Move Over Law," managed lanes, new signs,
Safety Funding – Traffic and Safety Engineering Branch at CDOT headquarters worked on some phase of safety funding in the last quarter of 2016. During October-December, the Branch prepared for the next round of applications for the Local Agency Safety Studies Program. The program gives smaller municipalities the opportunity to receive “personalized” traffic engineering assistance, and five smaller towns will be selected. Also, the Branch recently received applications for safety project funding assistance through the recurring federal Highway Safety Improvement Program (HSIP). In early 2017, CDOT Region and HQ traffic engineering offices will evaluate the individual projects and prioritize project funds over the coming construction seasons as requested by the local agencies.
Bike/Pedestrian Inventory – The Bicycle/Pedestrian/Scenic Byways Section completed the CDOT Region 2 bicycle and pedestrian inventory pilot this fall and will be utilizing the format to begin conducting similar inventories in the other four CDOT Regions. The purpose of the inventory is to gain a fuller picture of the presence of bike and pedestrian facilities adjacent to, crossing, or in state highway rights of way. The inventory considered two types of bicycle friendliness measurements:
- BicycleLevel of Service (BLOS)– Rates friendliness based on such things as
widthof facility, pavement condition, amountof vehicular traffic, percentageof truck traffic, and vehicle speed. Levelof Traffic Stress (LTS) – Rates friendliness based on the perceived stress a user experienceswhen using the facility by considering things like the overall size of the roadway and the level of separation from vehicular traffic.
These two methods of measurement don’t always align with each other. A facility providing an excellent LTS score, for example, may be a two-lane roadway with wide shoulders and low traffic levels, but one that is heavily used by trucks. Since the percentage of truck traffic is not considered in the LTS calculation, this score may not accurately reflect bicycle friendliness. Conversely, a roadway with low traffic volumes but high speeds may appear friendly according to the BLOS calculation but present a rather stressful situation to bicyclists. CDOT is still analyzing the information collected, but it is likely that a combination of both methodologies will be used to evaluate friendliness.
Express Travel – I-70 Eastbound Mountain Express Lane launched successfully in late 2015, and in 2016 has improved holiday afternoon travel times by 26 percent, and evening peak travel times by a whopping 52 percent.
Travel Time Index (Eastbound Sundays on I-70 from Milepost 228-243, Georgetown to Veterans Memorial Tunnel)
Heat Map - In this “heat map” chart, the areas where traffic speeds slow are shown in red. The box on the left indicates areas of significant congestion before the I-70 eastbound mountain express lane was constructed. The box on the right shows post-completion improvements in travel speeds (shown in green) where congestion used to occur. (Chart courtesy of CDOT
The status of other planned and existing express lane projects is:
- U.S. 36 reached substantial completion and Phase 2 tolling began in March 2016. U.S. 36 is demonstrating peak hour travel time improvements of 20-29 percent.
- In July, North I-25tolls began on Segment 2 and completion of financing and groundbreaking on Segment 3 took place. Advance planning is going forward for improvements on Segments 7 and 8. Segment 2 is from Milepost 217 (US 36 intersection) to MP 223 (120th Avenue); Segment 3 is from MP 223 (120th Avenue) to MPO 229 (SH 7); Segment 7 is from MP 255 (SH 402) to MP 259 (Crossroads Boulevard); and Segment 8 is from MP 259 (Crossroads Boulevard) to MP 269 (SH 14). Refer to the I-25 map, below.
- C-470broke ground for new Express Lanes in August, celebrating the start of highway reconstruction to serve more than 100,000 motorists per day in a highly congested corridor.
Webinar Highlights Mobility Options – On December 6, CDOT’s Division of Transportation Development and Office of Government Relations co-hosted a webinar entitled Together We Go: The Current State of Transportation in Colorado for the Colorado Municipal League (CML). The webinar provided CML members information on the 2040 Statewide Transportation Plan, the current state of transportation in Colorado, and recent mobility innovations such as
- The Rams Route (from Colorado State University in Fort Collins to Denver Union Station, leaving CSU on Friday afternoons and returning Sunday) was 84 percent full for the last semester and had a 123 percent fare box recovery.
Bustangroutes to football games of the Denver Broncos had a 109 percent fare box recovery. Tickets for the Bustangservice for the Broncos is $30 roundtrip. The two-game pilot was extended to five games. Next year will be the first full season for the service, as well as for the Rocky Mountain Showdown (the CSU and CU-Boulder game at the stadium).
Big Impact – This scene is from Mt. Evans Scenic Byway,
which accounted for about
one quarter of the economic
impact of all the 26 byways in Colorado. (CDOT Photo)
Byways Contribute to Economy - Colorado’s 26 scenic and historic byways contributed nearly $800 million in economic impact annually to the state’s economy from 2009 to 2014, according to the CDOT Colorado Byways Economic Data Analysis released in November. The economic impacts come from visitors who spent money in communities along the byways. Scenic byways supported nearly 4,000 jobs throughout the state. The Mount Evans Scenic Byway accounted for about a quarter of all economic impacts during the 5-year study period. The economic impact report can be viewed on the scenic byways website under Links and Resources.
The National Scenic Byways celebrated its 25th anniversary in December, two years after Colorado established its program via an executive order signed on March 16, 1989, by Gov. Roy Romer that created the Scenic and Historic Byways Commission. The national program began with the signing of the Intermodal Surface Transportation Efficiency Act (ISTEA) of 1999. ISTEA provided grant money for management plans and amenities along the scenic byways. The program’s discretionary funding continued through 2012, prior to Moving Ahead for Progress (MAP-21) and Fixing America’s Surface Transportation (FAST) Act. The two acts did not include discretionary federal funding for byways.
I-70 Pilot Gets Underway – In September, CDOT began a pilot project to assess the risk and resiliency of I-70 across the state, from Kansas to Utah, to better prepare for the risks of floods, fire, rock fall, and other physical events.
The method that will be employed was developed as part of the program to recover from the floods of 2013 and was most recently used for the rock fall in Glenwood Canyon to analyze potential mitigation measures. The 12-month pilot will provide quantified risk and resilience information for assets on I-70 to assist in prioritizing projects at key locations where risk is high and resilience is low. If successful, the pilot can be applied to future asset management, project prioritization, and maintenance practices in critical corridors around the state. I-70 was selected for the pilot due to
I-70 at Dusk – Its varied topography, from plains to mountains,
and importance to the state’s economy make I-70 a logical choice
for a risk and resiliency pilot project. (CDOT Photo)
Internal Highway Maintenance Improvements – The CDOT Division of Highway Maintenance is undertaking a number of improvements to its business processes that may help the division deal with maintenance issues sooner and faster. The improvements include:
- Mobile Solutions – In November, the division kicked off a project that will make it possible for maintenance personnel to report on work they’re doing
fromthe field; do mapping that models the roads and associated assets such as signs, guardrails, and culverts; and implement a geographic information system (GIS) software that will work with CDOT’s current GIS software to ensure accuracy and consistency of data.
- Maintenance Levels of Service - In October, the division began the Maintenance Levels of Service (MLOS) SAP Integration project that takes the findings of the budget model analysis portion of the Optimization Project and incorporates the needed improvements into the budgeting system. The performance-based budgeting system, called MLOS, allocates the Maintenance budget throughout the state and reports on performance through CDOT’s Asset Management program. During October,
Novemberand December, the Office of Information Technology technical experts and the division’s subject matter experts completed knowledge transfer and started designing the new budget system.
- Asset Inventory – During October,
Novemberand December, division employees finished collecting wall inventory and condition assessments, part of an effort that began in 2015to update current inventory data. Division employees collect inventory through handheld devices while contractors collect inventory data remotely from videos and a technique called LiDAR. (LiDAR is a remote sensing method, short for light detection and ranging. The data is often collected by air.) However, some assets must be viewed on site, particularly those that aren’t that visible from the roads, such as pipes and culverts. The asset inventory began with collecting data on guardrails, followed by culvert information. More than 43,000 culverts were inventoried and conditions assessed throughout the state.
LiDAR – This artist’s depiction shows how data
on highway transportation assets is collected. (Illustration
courtesy of CDOT Division of Highway Maintenance)