Time delay in construction projects causing not only extended duration but also excessive project costs. It is needed by both owner and contractors to have good understanding to delay factors in construction project. The research aim is assesing delay factors in construction project from owner and contractors point of view. Questionnaire was used in this research and data were analyzed through Kendall’s W test using SPSS programme. This research has analyzed 15 delay factors in construction projecy i.e land acquisition delay, location, social, contract change order (CCO), rework, quality of subcontractor, delay in permits, poor planning, unstable material price, law and regulation, owner required, inflation, payment delay, cash flow and bad weather. The research finding land acquisition delay as the top of delay factors in construction project in Indonesia.

Start at present, investment in toll road construction is conventional investment in the form of investment within a certain period of time to obtain profits from the results of capital loans/financing obtained from toll revenues during toll road operation during the concession period by the BUJT. This means that BUJT has full authority over the implementation of road maintenance at the location of its concession. Hence toll road concessions have the obligation to maintain toll roads in accordance with minimum service standards using the company’s toll road revenues. Thus, each BUJT has their own maintenance policy. Therefore, the management of toll roads that are managed on a concession basis can lead to differences in road damage management programs in each BUJT concession. This research assesses the road maintenance program planning on BUJT toll road concession holders to see the effectiveness BUJT in carrying out road maintenance regarding of the fulfillment of SPM. The result shows that the majority of BUJT has regularly carried out efforts to improve road functions, however they have the inadequacy in conduct conditions surveys by using equipment according to the standards. with “Undertake routine efforts throughout the year to maintain road conditions” being the highest mean whereas “Perform visual assessment on foot” has the lowest mean value. Moreover, it can be determine that the road damage frequency data found is with the an “Adverse Opinion” audit findings result that is conducted by BPJT with the most frequent damage and receive an “Adverse Opinion” of an audit result was potholes with mean value of 2.100 and 2,200 that is followed by Guardrail damage with mean value of 2,1667 and 2,200. While the least frequent damage in the toll road was Drainage cross section with mean value of 2.533 and 2,700 and Rutting with mean value of 2.400 and 2,633 subsequently for damage frequency and Adverse Opinion frequency.

The majority of traffic safety evaluations in the world generally have been conducted by colecting historical accident data. The data will then being analyzed using risk prediction models or before-after study that required an exact and reliable data. Meanwhile, the availability of accident data is rare where the rest actually consist of near-crashes and abnormal behaviour, which is mostly underreporting and lack of detail concerning the behavioural and situational of the event. Therefore, traffic conflict technique, is needed to assess traffic safety as another approach rather than waiting for several years until a number of accidents happen in a certain area. Hence the aim of this study is to make a safety evaluation towards a specific intersection in Hasselt Belgium using traffic conflict technique. The observation of conflict (near crashes) was carried out in intersection of Manteliusstraat – Dorpsstraat – Thonissenlaan in the Hasselt, Belgium. In order to differentiate slight conflict and serious conflict, the TA-value (Time of accident) was defined based on the estimated speed of the road user and estimated distance from the road user when conflict occurred. From the observation, it was found that the conflicts between car and pedestrian were the most frequent conflict, with 50% of the total conflict, and that the conflict between car with car and the conflict between car with cyclist were high in terms of severity level based on the TA-value. By taking these into consideration, it can be concluded that unsafe crossing for pedestrian and cyclist, different speed, and peak hour traffic were the causes of conflict. Therefore, it was concluded that traffic conflict technique can be used to assess and measure traffic safety in a certain road segment. Furthermore, in term of safety, the Manteliusstraat – Dorpsstraat – Thonissenlaan intersection should be modified with some alternatives; signalized intersection with toucan crossing and traffic control devices improvement

Di Kota Semarang jumlah kecelakaan lalu lintas cenderung mengalami kenaikan setiap tahunnya. Dari seluruh kecelakaan yang terjadi di jalan raya, faktor perilaku pengemudi (human error) memiliki kontribusi paling tinggi yaitu mencapai antara 80-90 persen. Kecelakaan jalan menjadi penyebab utama kematian di kalangan remaja antara usia 14 dan 24 tahun. Hal ini disebabkan oleh beberapa faktor salah satunya persepsi pengendara. Tujuan studi ini adalah untuk melihat kecenderungan perilaku dan pengaruh faktor persepsi rasa takut dalam mempengaruhi perilaku pengemudi usia remaja di Kota Semarang, agar didapatkan pemahaman yang lebih dalam tentang perilaku pengemudi remaja dalam upaya mengurangi jumlah kecelakaan lalu lintas. Responden pengendara kendaraan usia remaja akan diminta untuk melengkapi Driver Behaviour Questionnaire (DBQ) yang meminta mereka untuk menilai frekuensi dimana mereka melakukan berbagai jenis kesalahan dan pelanggaran saat berkendara serta kuesioner persepsi rasa takut dalam berkendara. Dari Penelitian ini dapat disimpulkan bahwa persepsi terhadap rasa takut tidak memiliki hubungan yang cukup kuat terhadap keterampilan mengemudi pengendara usia remaja terlihat dari nilai korelasi Rsquare kedua variabel tersebut yaitu sebesar 1.1%. Selain itu persepsi rasa takut yang juga tidak dapat serta merta mengurangi tingkat kesalahan (lapses dan error) yang dapat dibuat tiap individu saat sedang berkendara, tetapi perasaan takut ini dapat mengurangi intensi atau keinginan pengendara remaja untuk melakukan tindakan pelanggaran ringan maupun berat (ordinary dan aggressive violations).

This study demonstrates the economic benefit analysis from two alternative project on gravel road surface using HDM-4 to access the most appropriate project and maintenance standard both in term of pavement remaining life and also road user cost (RUC). The two alternative projects will be treated with different work standards. First Alterative namely “Without Project” will only be maintain the existing project with grading every six months, spot re-gravelling to replace 30% of material lost each year, and gravel resurfacing. Second Alternative namely “With Project” will be maintaining and upgrading the existing road pavement to bituminous pavement in year 2019 for section A001-01 and for section A001-02 in year 2020, by doing grading every six months and spot re-gravelling to replace 30% of material lost each year. In conclusion, from two proposed alternatives, although it requires more funds at earlier stages ‘with project’ alternative is the most appropriate project considering the number of maintenance followed, overall road performance, RUC, and the values of NVP and IRR.