Now showing items 5-7 of 7

    • Traffic characteristics of protected/permitted left-turn signal displays 

      Kacir, Kent C.; Fambro, Daniel B.; Noyce, David A. (2000)
      At least four variations of the permitted indication in protected/permitted left-turn (PPLT) control have been developed in an attempt to improve the level of driver understanding and safety. These variations replace the ...
    • Traffic conflicts associated with protected/permitted left-turn signal displays 

      Kacir, Kent C.; Fambro, Daniel B.; Noyce, David A. (2000)
      Several different protected/permitted left-turn (PPLT) signal displays are used in the United States, varying in configuration and permitted indication. Questions remain as to the safety implications of using each type ...
    • Use of protected/permitted left-turn signal control in the U.S. 

      Fambro, Daniel B.; Kloos, William C.; Kacir, Kent C.; Noyce, David A. (1999)
      The growing level of traffic demand on urban and rural roadways has led to increased use of protected/permitted left-turn (PPLT) signal control. PPLT signal phasing provides an exclusive phase for left turns as well as a ...