Operational Improvements and Congestion Management Questionnaire
Project Information
Agency Name | TxDOT Houston District |
Project Title | SH 225 at SL 8 Three Remaining DC ramps |
Facility/Street/Highway | SH 225 |
Limits | AT SL 8 |
Description | CONSTRUCT 3 DIRECT CONNECTOR RAMPS (EB-NB, EB-SB, WB-SB) |
Timeframe | Short Term (0-5 Years) |
Estimated Cost | $95,000,000.00 |
Investment Category-Focused Criteria
No
1.0 – 1.25
Travel Time Index (TTI) is a ratio that compares peak period travel times along a corridor to average travel times, thus estimating a relative level of rush hour congestion. Current TTI for the project area is 1.17, indicating that it takes 1.17 times as long to travel this corridor in the peak period than average, which is mildly congested.
1.5 – 1.75
Travel Time Index (TTI) is a ratio that compares peak period travel times along a corridor to average travel times, thus estimating a relative level of rush hour congestion. Current TTI for the project area is 1.17, indicating that it takes 1.17 times as long to travel this corridor in the peak period than average, which is mildly congested.
The projects that result from the PEL Recommendation will include elevated structures (Work Code 541, CRF 30) that will add capacity and provide a means for express travel thus vehicles move more efficiently. The project includes the following Congestion Management Strategy: Intersection Improvement. This project will construct direct connectors/aux lanes (WC 521/522) that will improve interchange design (WC 515) and operation, facilitating more efficient traffic flow and reducing congestion caused by intersection-related crashes.
Yes
Other Investment Category Focused Criteria
Yes
The project is located in a high growth area. The population is projected to grow by 0.4% and jobs are projected to increase by 12.3%. No notable land use changes announced or modeled.
Sidewalks will not be built on this DC ramps/aux lanes only project.
Harris County Transit: Baytown/Laporte - Gulfgate Shuttle will use the NB-EB DC ramp and related aux lanes, this will improve transit service reliability as the buses will no longer be idling at signalized intersections on the existing frontage roads.
The project will construct 3 direct connector ramps/aux lanes to better maintain flow on the facility after vehicle collisions. The direct connector ramps/aux lanes will also better accommodate diverting traffic should an incident occur that impacts the main lanes.
Pavement Score: Poor Narrative: This segment contains pavement in Poor condition, according to TxDOT and FHWA guidelines. This project will include new connectors in Good condition, which will improve existing pavement and increase the overall amount of pavement miles in Good condition.
Planning Factors Criteria
3.82
21.647
Crash rates for this segment are per 100 million VMT. The fatality rate is 3.82, higher than the regional average (1.23), and the serious injury rate is 21.647, higher than the regional average (6.18). This project will improve interchange design and operation (aux lanes WC 521/522), reducing intersection-related crashes. The consolidated crash reduction factor is 65% as a result of constructing direct connector ramps on an interchange (WC 515).
Resiliency
Medium
Medium
The existing at-grade frontage road intersections will be replaced with above-grade DC ramps/aux lanes reducing the risk of flooding. All current projects are being designed to meet and/or exceed ATLAS-14 drainage standards.
Access/Connectivity
2,185
1,435
No
No
No
Environmental Justice
2,185
1,435
189
118
19
229
17.00
The area surrounding the project segment has a lower low-income population (9.06%) as compared to the regional average of 13.5%. The area surrounding the project segment has a higher minority population (68.82%) as compared to the regional average of 65% minority. Because of its central location in the regional network, the project will produce improvements in mobility and connectivity for vulnerable populations as well as connectivity to schools, medical facilities, and social services for the regional population. As a result of the improvement, vulnerable populations will have increased resilience and evacuation capacity in the event of hazards. SH 225 is an evacuation route. The project will improve drainage to ATLAS-14 standards, which reduce flooding events and their impact on vulnerable populations. The project will increase access to and reliability of transit services for vulnerable populations, who generally rely more on these services.
The area surrounding the project segment has a lower low-income population (9.06%) as compared to the regional average of 13.5%. The area surrounding the project segment has a higher minority population (68.82%) as compared to the regional average of 65% minority. TxDOT’s NEPA Environmental Process is designed to ensure compliance with Title VI of the Civil Rights Act of 1964, and the Executive Order on Environmental Justice. Standard practice is to implement projects that provide user safety and operational efficiency while taking into account environmental quality and impacts to surrounding communities. In practice this means identifying and assessing potential project impacts, then proposing measures to avoid, minimize and/or mitigate disproportionately high and adverse effects to Environmental Justice Populations. For example, the project will improve drainage to ATLAS-14 standards, which will mitigate impacts from added capacity to vulnerable populations.
Impacts on Natural and Cultural Resources
This project is in conceptual development. If required, the appropriate NEPA Environmental Document (Categorical Exclusion, Environmental Assessment, or Environmental Impact Statement) will be conducted to identify, avoid, and mitigate potential impacts to the natural or human environment.
NOx: -0.33; VOC: 1.49
Innovation
Yes
Brand new Signal Phasing and timing (SpAT) signals will be installed on this segment of the project (Related to CSJ 0912-00-701 that will install 1,100+ of these signals on all traffic lights on TxDOT HOU district roads)
Yes
Brand new Signal Phasing and timing (SpAT) signals will be installed on this segment of the project (Related to CSJ 0912-00-701 that will install 1,100+ of these signals on all traffic lights on TxDOT HOU district roads)
Additional Documents
2023HGAC-CFP-RGM-LOS-Port Freeport-Chairman (ALL RGM TxDOT Projects).pdf