Concrete construction offers a great opportunity to replace the cement with a coal-based power plant waste—known as coal bottom ash (CBA)—which offers great environmental and technical benefits. These are significant in sustainable concrete construction. This study aims to recycle CBA in concrete and evaluate its particle fineness influence on workability, compressive and tensile strength of concrete. In this study, a total of 120 specimens were prepared, in which ground CBA with a different fineness was used as a partial cement replacement of 0% to 30% the weight of cement. It was noticed that workability was decreased due to an increased amount of ground CBA, because it absorbed more water in the concrete mix. The growth in the compressive and tensile strength of concrete with ground CBA was not significant at the early ages. At 28 days, a targeted compressive strength of 35 MPa was achieved with the 10% ground CBA. However, it required a longer time to achieve a 44.5 MPa strength of control mix. This shows that the pozzolanic reaction was not initiated up to 28 days. It was experimentally explored that 10% ground CBA—having particle fineness around 65% to 75% and passed through 63 µm sieve—could achieve the adequate compressive and tensile strength of concrete. This study confirmed that the particle fineness of cement replacement materials has a significant influence on strength performance of concrete.

The research conducted on UMKM commercial sector which aims to determine how much the contribution of the Balanced Scorecard (BSC) implementation by using four perspectives: financial, customer, internal business process and learning and growth. The concept Balanced Scorecard is deemed in accordance with the consideration that the concept is able to balance short-term plan with long-term plans, as well as to balance financial performance with the performance of non-financial. In addition, The benefits from this research is that companies have an appropriate business strategy and work program that can face of such change, enabling it to maintain and expand its business in the future in accordance with the vision and mission.By using these research techniques, application of the BSC through four perspectives can contribute significantly to the company's performance. This is indicate that UMKM oriented continuously on efforts to maintain customer satisfaction to earn the trust of the quality of the product followed by their support productive and committed employees who will be able to deliver products / services efficiently, consistent and timely with using technology information that have an impact on the organization's ability to generate adequate financial returns. Penelitian yang dilakukan pada sektor komersial UMKM yang bertujuan untuk mengetahui seberapa besar kontribusi penerapan Balanced Scorecard (BSC) dengan menggunakan empat perspektif: keuangan, pelanggan, proses bisnis internal dan pembelajaran dan pertumbuhan. Konsep Balanced Scorecard dianggap sesuai dengan pertimbangan bahwa konsep ini mampu menyeimbangkan rencana jangka pendek dengan rencana jangka panjang, serta menyeimbangkan kinerja keuangan dengan kinerja non-keuangan. Selain itu, Manfaat dari penelitian ini adalah bahwa perusahaan memiliki strategi bisnis yang tepat dan program kerja yang dapat menghadapi perubahan tersebut, memungkinkan untuk mempertahankan dan memperluas bisnisnya di masa depan sesuai dengan visi dan misi. Dengan menggunakan teknik penelitian ini , penerapan BSC melalui empat perspektif dapat memberikan kontribusi signifikan terhadap kinerja perusahaan. Hal ini menunjukkan bahwa UMKM berorientasi terus menerus pada upaya mempertahankan kepuasan pelanggan untuk mendapatkan kepercayaan dari kualitas produk diikuti dengan dukungan mereka yang produktif dan berkomitmen karyawan yang akan mampu memberikan produk / jasa secara efisien, konsisten dan tepat waktu dengan menggunakan teknologi informasi yang berdampak pada kemampuan organisasi untuk menghasilkan pengembalian keuangan yang memadai.

Paving block pavement is already widely used in Indonesia. Materials made of concrete paving blocks are easy to make and easy to implement. Currently the manufacture of paving blocks SNI 03-0691-1996 refers to a method that consists of a mixture of cement, sand/gravel: water. Our research uses bamboo pieces of waste material as a substitute for gravel. Comparison of the composition of the bamboo pieces that are used to dry conditions weighing 10 kg, 20 kg and 30 kg. Based on compressive strength testing performed at the age of 7, 14 and 28 days can be known ability paving block receives compressive strength. The research using bamboo fiber material at 28 days had compressive strength 171 kg/cm2, 190 kg/cm2, and 199 kg/cm2. While using bamboo fiber material and fly ash at 28 days have compressive strength 231 kg / cm2, 176 kg/cm2, 252 kg/cm2. Test results meet the quality of type C, D and the use of bamboo waste as aggregate paving can support green infrastructure in the future.

Perparkiran merupakan masalah yang sering dijumpai, apalagi di daerah yang mempunyai aktivitas tinggi seperti pasar, yang sering kali menimbulkan kemacetan di jalan. Salah satu hal yang perlu dilakukan untuk meminimalkan masalah tersebut yaitu dengan analisa perparkiran pada lahan tersebut. Berdasarkan pada latar belakang tersebut di atas, maka hal yang perlu dianalisa adalah karakteristik parkir yaitu dengan melakukan perhitungan dan analisa terhadap durasi parkir, akumulasi parkir, tingkat pergantian (parking turn over), volume parkir, kapasitas parkir, indeks parkir, okupansi. Berdasarkan hasil analisis diperoleh kesimpulan bahwa karakteristik parkir jenis sepeda motor di badan jalan pada hari libur 1.104 kendaraan dengan akumulasi tertinggi 133 kendaraan dan rata-rata durasi parkir 128,52 menit/kendaraan. Nilai turn over tertinggi 7,63 dan tingkat penggunaan parkir tertinggi 190,34 %. Jumlah petak parkir yang tersedia saat ini yaitu 150 petak parkir sehingga kapasitas ini tidak mampu menampung pengguna parkir saat jam puncak. Sementara untuk karakteristik parkir jenis mobil adalah volume parkir mobil 194 kendaraan dengan akumulasi tertinggi 33 kendaraan dan rata-rata durasi parkir 108,34 menit/kendaraan. Nilai turn over tertinggi 8,08 dan tingkat penggunaan parkir tertinggi 54,31 %. Jumlah petak parkir yang tersedia saat ini yaitu 33 petak parkir. Sehingga kapasitas ini masih dapat menampung permintaan parkir saat jam puncak sebesar 194 kendaraan yaitu pada pukul 10.00-10.30 WIB.Â

The number of vehicles in Indonesia based on BPS data in 1987 amounted to 7.98148 million units to 104 118 969 units in 2013. An increase in the number of vehicles by 1304.51% is dominated by a motorcycle which was originally 5,554,305 units to 84,732,652 units. A large number of vehicles adds to problems of traffic regulation on the road. Internet of Things (IoT) can be used as the vehicle detection control device so as to create solutions Green Economic Development City Smart Transportation System that is good in handling motor vehicle. IoT sensor devices produced can identify the vehicles through model of information system connected with the detection system of motor vehicle license plate identification by means of sensors and data are stored in a digital chip which is mounted on any motor vehicle. With the chip of these vehicles will be produced a Green Economic Development City Smart Transportation System for the development of cities, especially in Narotama.

Surabaya is the capital of the province of East Java and is the second largest city in Indonesia after Jakarta. As a city that will continue to develop, the mobility of the people is getting higher, as well as the progress of the current means of transportation which is increasing, causing traffic problems, one of which occurs at intersections. One of the intersections that will be reviewed is the Raya Manukan intersection. This study uses the MKJI 1997 guideline, with primary data collection by means of traffic conditions survey and secondary collection, namely data on the number of vehicle growth from the Department of Population and Civil Registry of Surabaya City. This study aims to determine the performance of the unsigned intersection at the Raya Manukan intersection. With this research data, as well as from the results of traffic analysis at the Raya Manukan intersection with the boundary from the Amd Street Intersection to the Buntaran Street Intersection. From the calculation results, it is obtained that the intersection capacity is 3750.9 pcu / hour, with a degree of saturation value of 0.8254. From the results of the analysis, the calculations that have been carried out have not been able to reach the desired degree of saturation value, which is as suggested by MKJI 1997.Therefore then an alternative is made with road widening engineering and produces a saturation degree value of 0.7493, so that the road widening on Raya Manukan Kulon is the best alternative in solving the capacity problem of Intersection Manukan.