Judul: Analisis Risiko Operasional Jalan Tol Jagorawi PT Jasa Marga (Persero) Tbk
Abstrak: A large number of vehicles in big cities led to traffic density, until people start switching to use the toll road. Jagorawi is one of the densest toll road, where high flows of traffic cause various risks which related to the operation of toll road. The purpose of this research is to determine the operational risk of Jagorawi toll road and determine the alternative strategies for the smooth operation of toll road. Method of sampling used is non probability sampling with purposive sampling technique. Data analyzed by using cause and effect analysis, Failure Mode Effect Analysis, and Analytical Hierarchy Process. The result indicates that the main risk which has been priority is traffic risk and the highest risk variabel of 21 risk variabels is the delay of infrastructure handling. The right alternative strategy to handle the mentioned risk is by educate the toll road users and inhabitants, develop the instrastructure, invest in quality of human resource, auto gate, and improve the service and safety.
Keyword: Bogor Agricultural University (IPB), operational risk, FMEA, AHP

Judul: Analisis risiko transportasi jalan tol Jagorawi
Abstrak: Penyelenggaraan sistem transportasi jalan tol bertujuan untuk meningkatkan efisiensi pelayanan jasa distribusi antar wilayah guna menunjang peningkatan pertumbuhan ekonomi. Penyelenggaraan sistem transportasi jaian tol juga menimbulkan dampak negatif berupa kec,1akaan lalu lintas. 0leh karena timbulnya dampak negatif tersebut bersifat tidak pasti, maka untuk menduga timbulnya dampak digunakan metode analisis risiko. Hetode analisis risiko menggunakan pendekatan teori peluang. Penelitian ini bertujuan : (1) menduga besarnya peluang (pz-obability) terjadinya kecelakaan di jalan tol Jagorawi; (2) menentukan faktor-faktor yang mempengaruhi terjadinya kecelakaan di jalan tol Jagorawi dan menentukan model hubungan antara faktor-faktor tersebut; (3) mengidentifikasi profil pengemudi di jalan tol Jagorawi; (4) menduga besarnya kompensasi kerugian kecelakaan di jalan tol Jagorawi; (5) menyusun rencana pengelolaan risiko di jalan tol Jagorawi. Penelitian ini menggunakan lokasi studi di jalan tol Jagorawi, Jawa Barat yaitu jalan tol yang menghubungkan kota Jakarta dengan beberapa tempat di Kabupaten Bogar dan Kotamadya tertutup Bogor ( km Bogor. Pengamatan dibatasi hanya pada jalur antara gerbang THII (km 53,5) sampai pada gerbang 16,0) dan gerbang Ciawi (km 14,0), baik pada jalur arah Jakarta Bogor/Ciawi maupun jalur arah Jakarta. Penelitian dilaksanakan pada bulan sampai dengan Juni 1993. ...
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Judul: Synthesis of Apatite - Chitosan Composite Using Duck Eggshell and Chitosan with Temperature and pH Control
Abstrak: Composite of apatite-chitosan was prepared by using chitosan as polymer matrix. Calcium phosphate was prepared from CaO and (NH4)2HPO4, which the ratio Ca : P had to be 1.67. Chitosan is produced by deacetilase from biopolymer chitin. Duck eggshell (95% CaCO3) as starting material was converted to be calcium oxide (CaO) through calcinations with temperature 1000oC for 5 hours. In-situ and ex-situ methods were prepared from apatite and chitosan (dissolved with acetate acid 2%). Calcium phosphate prepared for bone implantation, but it is too fragile and brittle to be implant into the body. So addition of chitosan can decrease crystalinity and increase mechanic characteristic (tougher). Composite apatite-chitosan was resulted by fast precipitation. Fast precipitation was held in a breaker glass with nitrogen atmosphere, under controlled temperature at 37oC and pH 7, in order to increase amount of hydroxyapatite. Precipitation with CaO which was dropped by (NH4)2HPO4. Hydroxyapatite and chitosan were appearing at samples with in-situ and ex-situ methods which indicating by peak matching of XRD (closed lattice parameter, crystal size), overlapping at FTIR spectra and supporting by SEM picture (homogenous and agglomerated particle). However, it still needs further research to examine biocompatibility osteoconductive degree of sample by in-vivo and in-vitro test.
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