State Legislative Issues for Managed Lanes in Texas

2003 ◽  
Vol 1856 (1) ◽  
pp. 168-174
Author(s):  
Beverly Kuhn ◽  
Debbie Jasek

The managed lane concept is currently being considered on major free way projects in Texas cities. The term managed lanes encompasses a variety of facility types, including high-occupancy vehicle lanes, high-occupancy toll lanes, single-occupancy vehicle express lanes, special-use lanes, and truck lanes. The premise of the managed lanes concept is to increase freeway efficiency and provide free-flow operations for certain freeway users by packaging various operational and design strategies. The strategies deployed offer the flexibility to be adjusted to match changing corridor and regional goals. Research undertaken in Texas Department of Transportation (TxDOT) research project Operating Freeways with Managed Lanes, which assessed state legislative needs necessary for Texas to legally and successfully implement the various types of managed lane facilities across the state, is discussed. Texas statutes may require changes in various areas to allow the implementation of managed lanes, including defining managed lanes as an operational concept in Texas, authorizing entities to develop managed lane facilities for congestion mitigation purposes, allowing entities operational flexibility with managed lane facilities, authorizing entities to develop exclusive lane facilities for congestion mitigation purposes, authorizing TxDOT to establish lane restrictions for congestion mitigation purposes, removing the time-of-day limitation on current municipal authorization for lane restrictions, and making the unlawful violation of any managed lane facility in Texas punishable by fine.

2009 ◽  
Vol 2099 (1) ◽  
pp. 113-122 ◽  
Author(s):  
Mark W. Burris ◽  
David H. Ungemah ◽  
Maneesh Mahlawat ◽  
Mandeep Singh Pannu

Author(s):  
Michael Janson ◽  
David Levinson

High occupancy/toll (HOT) lanes typically vary tolls charged to single occupant vehicles, with the toll increasing during congested periods. The toll is usually tied to time of day or to the density of vehicles in the HOT lane. The purpose of raising the toll with congestion is to discourage demand sufficiently to maintain travel speeds in the HOT lane. However, it has been demonstrated that the HOT toll may act as a signal of downstream congestion (in both general purpose (GP) and HOT lanes), causing an increase in demand for the HOT lane, at least at lower prices. This paper develops a model of lane choice to evaluate alternative HOT lane pricing strategies, including the use of GP density, to more accurately reflect the value of the HOT lane. In addition, the paper explores the potential effect these strategies would have on the HOT lane vehicle share through a partial equilibrium analysis. This analysis demonstrates the change in demand elasticity with price, showing the point at which drivers switch from a positive to negative elasticity.


2021 ◽  
pp. 1420326X2199119
Author(s):  
Ellen Kathrine Hansen ◽  
Thomas Bjørner ◽  
Emmanouil Xylakis ◽  
Mihkel Pajuste

The experiment was targeted to develop design strategies and methods by testing the complex interplay between the dynamics of daylight and electrical lighting in an office. The double dynamic lighting design concept is based on the idea of adding task lighting, with a directionality referring to the daylight inflow and a variation on direct/diffuse lighting and respective changes in colour temperature respond to sky conditions and daylight levels. The experiment was conducted in an office space at Aalborg University in Copenhagen from September to December 2019. Four participants moved in and worked in the office with four-week periods of respective standard static lighting as a baseline, and dynamic lighting. In a parallel mixed method approach with interviews and questionnaires, the dynamic lighting was compared to the baseline and to a control group. The results indicate that the dynamic lighting periods had a positive effect on visual comfort, perceived atmosphere and work engagement. The studies helped to develop the definition of five dynamic light settings. Seasonal changes, time of day, dynamic sunscreens and individual needs for task lighting can be implemented in future field experiments as additional dynamic parameters to meet individual needs and circadian potentials for double dynamic light.


Author(s):  
Peter Vovsha ◽  
Eric Petersen ◽  
Robert Donnelly

A substantial portion of regional travel is implemented by household members who travel together, primarily to participate in a shared household activity. Joint household travel is not explicitly accounted for in most regional travel models in which the unit of travel (either trip or tour) is considered for each person separately at each modeling stage—generation, mode, destination, and time-of-day choice. In addition, statistical evidence demonstrates that the vast majority of shared-ride travel consists of joint household travel. A modeling approach that distinguishes shared activity-based joint household travel from arranged interhouse-hold carpooling is clearly desirable to support accurate forecasts of shared-ride travel, critical in the evaluation of high-occupancy vehicle lanes or the adoption of toll strategies differentiated by occupancy levels. A range of aspects of joint travel both with empirical evidence and with discussion of modeling issues are addressed. A set of joint travel models is presented that has been estimated with the mid-Ohio regional travel household-interview survey. The model reported is one of the innovative components of the tour-based travel demand modeling system that has been developed for the Mid-Ohio Regional Planning Commission.


2002 ◽  
Author(s):  
Jacquelyn J. Graven ◽  
Tracy A. Manners ◽  
James O. Davis

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