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 ?
The roundabout is needed to improve safety at the intersection by improving sight distance and reducing drivers speeds.
but the county determined that the lot had insufficient sight distance from the east to allow an entrance.
people who were on the streets said they had difficulty in taking breath and drivers had a restrictive sight distance.
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.
Waters was travelling in the same direction and had a good sight distance to Ms Roberts' car and, although it was dark, should have seen the vehicle but failed to do so.
The sight distance is 2-3 meters, said Kylychbek Dosumbetov, officer of the Ministry of Emergency Situations.
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.
According to Supervisor Zev Yaroslavsky, the proposed left-turn lanes are not required and the new intersection into the subdivision could be constructed so as to provide sufficient sight distance to meet generally accepted traffic engineering standards.
The stands were so dense then that sight distance into the forest was less than 100 feet.