sight distance

sight distance

[′sīt ‚dis·təns]
(optics)
The distance from which an object at eye level remains visible to an observer.
References in periodicals archive ?
"Family groups keep each other within sound and sight distance whilst foraging.
The importance of providing adequate sight distance for a safe and efficient traffic is recognized by researchers and most standard design manuals [1, 2].
but the county determined that the lot had insufficient sight distance from the east to allow an entrance.
The cloud was very dense in the morning and the locals preferred to stay at home until the cloud disappeared.people who were on the streets said they had difficulty in taking breath and drivers had a restrictive sight distance. the sky turned into normal when it rained in the city.
According to the past research, including analysis accident feature of provincial highway, conference survey, focus group discussion, field observations, and letter survey, the major contributing factors include accident severity, geometric feature (horizontal curve, sight distance, longitudinal slope, width of the highway, and shoulder), traffic facilities (traffic signs and marking, guiding facilities, and safety facilities), traffic environment (traffic volume and configuration, crosswalk).
WASSIT / Aswat al-Iraq: A strong sand storm has struck southern Iraq's Province of Wassit on Wednesday night, dropping several electric towers and decreasing the sight distance for few meters, eyewitnesses said.
Sgt Daly agreed with defence counsel Tom Creed SC there were no aggravating factors such as drink or speed but simply that Waters failed to properly utilise the sight distance available to him to avoid Ms Roberts' car.
The sight distance is 2-3 meters, said Kylychbek Dosumbetov, officer of the Ministry of Emergency Situations.150 cars are blocked on the Kordai pass on the Bishkek-Almaty road.The Kyrgyz Ministry of Emergency Situations asked to refrain from use of the road, which is temporarily closed due to weather conditions.
The zoning appeals board denied the permit, citing two primary safety concerns: first, that the road provided insufficient access to the complex; second, that vehicles on the highway would have inadequate sight distance to stop for obstacles at the intersection.
Radio-controlled early-warning poles that flash when path activity is detected can be placed as far as 400 feet from intersections where a higher speed limit or restricted sight distance factor in.
The stands were so dense then that sight distance into the forest was less than 100 feet.