Effectiveness Analysis on Human-Machine Information Interaction of Intelligent Highway

Different human-machine collaboration modes and driving simulation tests with the orthogonal method considered are designed for a series of typical intelligent highway landscapes. The feedback of drivers under different interaction modes is evaluated through NASA-LTX questionnaire, driving simulator, eye tracker, and electroencephalograph (EEG). This optimal interaction mode (including voice form, broadcasting timing, and frequency) of each driving assistance scene in CVI (Cooperative Vehicle Infrastructure) environment under the conditions of high and low traffic is determined from subjective and objective perspectives. In accordance with feedback of these subjects on each set scene, the voice information structure of each assistance mode plays the most important role on drivers followed by the broadcasting timing and frequency. These broadcasts which provide good effects include scenarios such as various assistance scenes at curves and an early warning timing at a long-distance trip as well as a high early warning frequency; in addition, as for an exit-tip assistance scenario, a voice mode assistance is preferred; and for various speed assistance scenes, the beep mode is better. Furthermore, it is found that, at a higher traffic level but a short-distance trip, an early warning timing is favored generally for various scenes while under a low traffic level, a long-distance early warning timing is better.

Cement-Treated Volcanic Scoria for Low-Traffic Road Pavements in the Azores Archipelago

The Azoreans rely on an extensive network of rural roads for the most of the rural population’s activities (primary sector) and accessibility. To rehabilitate and maintain this network, asphalt concrete and crushed rock aggregate are usually used. However, in the region, the application of such paving technology can be extremely costly. It requires specialized contractors, dedicated equipment and raw materials that must be imported to most of the islands. Therefore, the use of locally available materials would result in more flexibility and fewer costs for planned interventions. In the Azores, known as bagacina, the volcanic scoria is a pyroclastic material, generally highly abundant in volcanic islands. This natural aggregate is inexpensive, easy to extract, and presents good geotechnical characteristics. However, due to its porous nature, it generally does not comply with the current specifications for pavement materials. Therefore, this study aims to evaluate cement-treated volcanic scoria to be used as low-traffic road pavement layers. The geotechnical properties and mechanical performance of the two types of scoriae were analyzed. As a result, both types of scoriae presented good behavior, according to the expected for a cement-treated material, and proved to be a suitable alternative for road pavements in the Azores Archipelago.

Utilization of copper fiber waste to increase compressive strength and split tensile strength of rigid pavement

The rigid pavement is a pavement construction in which a concrete slab is used as the top layer, which is located above the foundation or directly above the subgrade, without or with an asphalt surface layer. One type of rigid pavement used in Indonesia is rigid pavement without using reinforcement which is usually used in areas with low traffic or residential areas. Pavement without using reinforcement is the small split tensile strength so that the part of the plate will experience cracks due to stresses that cannot be avoided from traffic loads. Therefore, it is necessary to have reinforcement on the concrete slab so that the cracks do not extend. In this research, the use of copper fiber waste from electronic cables as a substitute solution for reinforcement to be used as a mixture in concrete. The experiments were carried out using fiber with variations of 0%, 0.5%, 1%, and 1.5% of the total weight of concrete mixture material and then tested at 28 days of concrete age. This research showed the variation of fiber weight until 1,5% increase the split tensile strength up to 32,46% and the compressive strength up to 9,16%.

MOTION BASED AUTOMATIC STREETLIGHT SYSTEM WITH VEHICLE SPEED SURVEILLANCE

Extravagance of electrical energy and human efforts is a common context while using manual switching of streetlights. In most of the cases, the streetlights remain ON during evening, night, even daylight the lights manually are switched OFF. This leads to a lot of energy wastage because lights keep glowing even when there is absolutely no necessity of it. This study aims to develop a smart street light system which glows when the vehicle or pedestrian enters the certain point of the road and make the light be in OFF/Dim position when it is not required. An illustration consisting of a transmitter and a receiver are made to accomplish the goal. The proposed system can turn ON the lights while nightfall and OFF the lights detecting the appearance of daylights. Meanwhile, presence as per the requirement. Hence, the street light will ON only when there are road users are present over there. The system is incorporated with a speed measuring section to reduce rash driving while the road has relatively low traffic density. Compared to the conventional street light system, this streetlight can reduce redundant energy consumption as well as reckless driving tendency.

Ketaatan Pengguna Jalan dalam Tertib Berlalu Lintas di Wilayah Hukum Polresta Denpasar

The order and safety of the driver is very important, one of the conditions for the driver to have a driver's license. Article 281 of the LLAJ Law clearly regulates sanctions for motorists who do not have a SIM, of course with the hope that no more traffic violations will occur. There are still many motorcyclists in the Denpasar Police jurisdiction who violate driving regulations by not having a SIM. which is an obligation for all motorists on the highway without exception. This study aims to explain the obedience of road users to Article 281 of Law Number 22 of 2009 concerning road traffic and transportation and to reveal the police's efforts to overcome the low traffic compliance of motorized vehicle users in the jurisdiction of Denpasar City. This research is designed with empirical legal research with a Legislative approach. The data used are primary and secondary materials obtained through interviews and documentation. the data is processed quantitatively in tabular form and analyzed qualitatively. Obedience of road users to Article 281 of Law Number 22 of 2009 concerning Road Traffic and Transportation, is still very lacking, this is due to the lack of awareness of road users, so they are still very dismissive and negligent in making driving licenses. Police efforts in overcoming the low traffic compliance of motorized vehicle users in the jurisdiction of Denpasar City, namely providing an introduction to traffic order from an early age to children, counseling and socialization, especially to students, students and directions to Banjar residents, as well as delivering orderly information. traffic and the development of the situation on the highway through social media.