In order to study the difference characteristics of
driver′s driving workload between highaltitude
area and plain area to obtain the tunnel lighting brightness requirements
applicable to highaltitude area, and provide the
theory, method and technical basis for objectively quantifying the design and
management standards of highway tunnel lighting in highaltitude area, a quantitative study is carried out in the actual
vehicle test of Jiangxi Yi′an secondclass highway and QinghaiTibet secondclass highway with similar road operation conditions from the
perspective of driving safety, stability and comfort based on the driver′s driving workload theory. The tests and conclusions are drawn as
follows: (1) By using CART to analyze the data from field driving test, it is
found that there is a positive correlation between the altitude and the normal
driving workload of drivers, i.e. the driving demand and driving workload of
drivers at altitude of 4 300~4 400 m are the highest, followed by that at altitude of 3 200~3 300 m,
and that at plain area are the lowest. (2) The driver′s
driving workload can be modified according to the altitude, and the correction
coefficient and the threshold of driving workload degree are obtained. (3) The
correction coefficient of tunnel lighting recognition demand relative to plain
area in highaltitude area is proposed, which is 1.2 at
altitude of 3 200~3 300 m and 1.8 at altitude of 4 300~4 400 m. (4) The design standards of
lighting brightness for each characteristic section of highway tunnel at
different altitudes are obtained.
HU Jiangbi, JIANG Chuan, GAO Xiaojuan
. Analysis of Tunnel Lighting Brightness in Highaltitude Area Based on Driving Workload[J]. Tunnel Construction, 2020
, 40(S1)
: 17
-24
.
DOI: 10.3973/j.issn.2096-4498.2020.S1.003
