Abstract
In the paper, the problem of a bi‐directional “green wave” mode production is considered for the vehicle flows motion on two‐lane highways during the conducting of construction works. The solution of the given task allows to develop practical recommendations for the sphere of the construction works management on two‐lane roads and country highways, and also to raise traffic control efficiency in the pointed conditions. The comparative analysis of possible traffic regulation modes for the set scheme of road construction works sites and the estimation of their efficiency is performed, the test of a hypothesis regarding the possibility of a bi‐directional “green wave” mode realization is carried out, and calculation of traffic lights signal control phases time is performed.
Highlights
One of the typical situations that drivers are forced to face in a daily life is regarded to be roads construction
We start with the assumption that it is necessary to set the construction works zones in a chessboard order. To make it more simple, at the beginning it is assumed that all construction works zones are identical in their length c1 = c2 = ... = ci = c, distances between neighboring zones are equal to l1 = l2 = ... = li = l, and coincide with extent of repair zones c = l, i.e. we provide the observance of topological symmetry condition of projected construction works sites
From the received description of the offered mode of bi-directional traffic it follows that the buffer zone in each of the directions, being at traffic lights, directly ahead of the beginning of the closed construction works zone will be filled with traffic on each fourth step of signal control
Summary
One of the typical situations that drivers are forced to face in a daily life is regarded to be roads construction. Especial inconvenience in case of road construction is traffic flow motion regulation on two-lane sites of road. A general negative consequence of this situation is the congestion of extensive queues leading to formation of traffic jams on two-lane highways during the time periods of construction works. One of them is a widespread full blocking of traffic, placing road information signs concerning a possible detour to avoid construction works zone. During the construction works time period, simultaneous expansion of road lanes width is practiced, though anyway, the width of a lane w in each direction is set much less than extents of construction works sites and intervals between the repair zones l > w, c >w. 2. The analysis of traffic regulation modes at the time period of construction works on two-way highways
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