Provided are a connector and a connection system for concrete barriers. The connector is configured to slip-fit into a cross-shaped gap formed between the concrete barriers. The connector includes a saddle member and a fork member. The saddle member includes a base plate and peripheral plates. The peripheral plates extend at angles from the base plate to define a channel extending along the length of the base plate. The fork member extends from the base plate of the saddle member. The fork member includes an elongated base, flanges, and legs. The elongated base extends in the channel between the peripheral plates at least along the width of the base plate. The flanges are transverse to the elongated base forming a cross-shaped structure disposed in the channel with the flanges that extend toward the open ends of the channel. The legs extend separately from the elongated base.

A fence post to be coupled to a flexible (e.g., mesh) fence to hold the fence above the ground. The fence post has a shaft to be driven into the ground. A downturned lower fence engaging hook extends from the bottom of the shaft to engage the bottom of the fence. The lower fence engaging hook is embedded in the ground along with the shaft of the fence post in order to hold the bottom of the fence against the ground. The fence post also has an upturned upper fence engaging hook extending from the top of the shaft to engage the top of the fence and hold the top of the fence up and above the ground. An upturned intermediate fence engaging hook extends from the shaft of the fence post between the lower and upper fence engaging hooks to engage the middle of the fence and hold the middle up.

A fence post to be coupled to a flexible (e.g., mesh) fence to hold the fence above the ground. The fence post has a shaft to be driven into the ground. A downturned lower fence engaging hook extends from the bottom of the shaft to engage the bottom of the fence. The lower fence engaging hook is embedded in the ground along with the shaft of the fence post in order to hold the bottom of the fence against the ground. The fence post also has an upturned upper fence engaging hook extending from the top of the shaft to engage the top of the fence and hold the top of the fence up and above the ground. An upturned intermediate fence engaging hook extends from the shaft of the fence post between the lower and upper fence engaging hooks to engage the middle of the fence and hold the middle up.

Surrogates for roadside objects, such as metal guardrails, can be used for vehicle testing. A surrogate for a metal guardrail can have substantially the same size and/or shape as the metal guardrail that the surrogate is mimicking. The surrogate can be configured to exhibit substantially the same characteristics as their actual counterpart metal guardrail when sensed by one or more vehicle sensors (e.g., cameras, radar sensors, and/or LIDAR sensors). Such surrogates can be used to test autonomous vehicles, one or more vehicle sensors, a vehicle sensor system, and/or one or more vehicle system (e.g., a road departure mitigation system). The surrogates can be configured to withstand being crashed into by a test vehicle without being damaged and without damaging the test vehicle.

Surrogates for roadside objects, such as concrete dividers, can be used for vehicle testing. A surrogate for a concrete divider can have substantially the same size and/or shape as the concrete divider that the surrogate is mimicking. The surrogate can be configured to exhibit substantially the same characteristics as their actual counterpart concrete divider when sensed by one or more vehicle sensors (e.g., cameras, radar sensors, and/or LIDAR sensors). Such surrogates can be used to test autonomous vehicles, one or more vehicle sensors, a vehicle sensor system, and/or one or more vehicle system (e.g., a road departure mitigation system). The surrogates can be configured to withstand being crashed into by a test vehicle without being damaged and without damaging the test vehicle.

Surrogates for roadside objects, such as concrete dividers, can be used for vehicle testing. A surrogate for a concrete divider can have substantially the same size and/or shape as the concrete divider that the surrogate is mimicking. The surrogate can be configured to exhibit substantially the same characteristics as their actual counterpart concrete divider when sensed by one or more vehicle sensors (e.g., cameras, radar sensors, and/or LIDAR sensors). Such surrogates can be used to test autonomous vehicles, one or more vehicle sensors, a vehicle sensor system, and/or one or more vehicle system (e.g., a road departure mitigation system). The surrogates can be configured to withstand being crashed into by a test vehicle without being damaged and without damaging the test vehicle.

Methods, systems, and apparatuses for controlling access to a secured area are disclosed. A moveable barrier at an entry point to the secured area may include one or more light arrays affixed to a front surface of the barrier to provide information to persons proximate to the bather using one or more illumination patterns. A programmable logic controller in communication with the one or more light arrays may select a pattern of illumination for the one or more light arrays. A rear light array affixed to a rear surface of the barrier may be configured by the programmable logic controller to duplicate illumination patterns selected for the one or more light arrays affixed to the front surface of the barrier.

Methods, systems, and apparatuses for controlling access to a secured area are disclosed. A moveable barrier at an entry point to the secured area may include one or more light arrays affixed to a front surface of the barrier to provide information to persons proximate to the bather using one or more illumination patterns. A programmable logic controller in communication with the one or more light arrays may select a pattern of illumination for the one or more light arrays. A rear light array affixed to a rear surface of the barrier may be configured by the programmable logic controller to duplicate illumination patterns selected for the one or more light arrays affixed to the front surface of the barrier.

The inventive light reflector employs a reflector portion which bears a light reflector and an adjoining attachment portion which is adapted to attach to roadway structures such as Jersey barriers and road stakes using applied mechanical force. By using mechanical force as a way to attach to roadway structures, the present invention avoids having to employ messy adhesives, screws or other complicated fastening methods.

A system for displaying a desired reflective sheeting striping pattern on a traffic management device includes providing a portable panel having reflecting sheeting affixed to a face thereof, orienting the portable panel as desired, and affixing the panel to the device using fastener holes disposed about a perimeter of the panel. The displayed striping pattern may be easily changed by removing the panel from the device, turning the panel over to display an opposing side, on which is displayed a different striping pattern, and reattaching the panel to the traffic management device so that the opposing side of the panel is displayed, or by removing the panel from the traffic management device, rotating the panel by 90 degrees, 180 degrees, or 270 degrees, and then reattaching the panel to the traffic management device so that the same particular striping pattern is oriented in a different direction.